Curzon numbers: Difference between revisions
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1000th Curzon number with base 10: 46845 |
1000th Curzon number with base 10: 46845 |
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=={{header|Factor}}== |
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{{works with|Factor|0.99 2022-04-03}} |
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<lang factor>USING: grouping interpolate io kernel make math math.functions |
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prettyprint ranges sequences ; |
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: curzon? ( k n -- ? ) [ ^ 1 + ] 2keep * 1 + divisor? ; |
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: next ( k n -- k n' ) [ 2dup curzon? ] [ 1 + ] do until ; |
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: curzon ( k -- seq ) |
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1 [ 50 [ dup , next ] times ] { } make 2nip ; |
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: curzon. ( k -- ) |
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dup [I Curzon numbers with base ${}:I] nl |
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curzon 10 group simple-table. ; |
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2 10 2 <range> [ curzon. nl ] each</lang> |
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{{out}} |
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<pre> |
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Curzon numbers with base 2: |
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1 2 5 6 9 14 18 21 26 29 |
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30 33 41 50 53 54 65 69 74 78 |
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81 86 89 90 98 105 113 114 125 134 |
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138 141 146 153 158 165 173 174 186 189 |
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194 198 209 210 221 230 233 245 249 254 |
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Curzon numbers with base 4: |
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1 3 7 9 13 15 25 27 37 39 |
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43 45 49 57 67 69 73 79 87 93 |
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97 99 105 115 127 135 139 153 163 165 |
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169 175 177 183 189 193 199 205 207 213 |
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219 235 249 253 255 265 267 273 277 279 |
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Curzon numbers with base 6: |
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1 6 30 58 70 73 90 101 105 121 |
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125 146 153 166 170 181 182 185 210 233 |
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241 242 266 282 290 322 373 381 385 390 |
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397 441 445 446 450 453 530 557 562 585 |
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593 601 602 605 606 621 646 653 670 685 |
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Curzon numbers with base 8: |
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1 14 35 44 72 74 77 129 131 137 |
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144 149 150 185 200 219 236 266 284 285 |
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299 309 336 357 381 386 390 392 402 414 |
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420 441 455 459 470 479 500 519 527 536 |
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557 582 600 602 617 639 654 674 696 735 |
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Curzon numbers with base 10: |
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1 9 10 25 106 145 190 193 238 253 |
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306 318 349 385 402 462 486 526 610 649 |
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658 678 733 762 810 990 994 1033 1077 1125 |
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1126 1141 1149 1230 1405 1422 1441 1485 1509 1510 |
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1513 1606 1614 1630 1665 1681 1690 1702 1785 1837 |
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</pre> |
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