Super-d numbers: Difference between revisions
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══════════════════════════════════ the first 10 super-9 numbers ══════════════════════════════════ |
══════════════════════════════════ the first 10 super-9 numbers ══════════════════════════════════ |
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17546133 32613656 93568867 107225764 109255734 113315082 121251742 175461330 180917907 182557181 |
17546133 32613656 93568867 107225764 109255734 113315082 121251742 175461330 180917907 182557181 |
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</pre> |
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=={{header|Sidef}}== |
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<lang ruby>func super_d(d) { |
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var D = Str(d)*d |
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1..Inf -> lazy.grep {|n| Str(d * n**d).contains(D) } |
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} |
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for d in (2..8) { |
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say ("#{d}: ", super_d(d).first(10)) |
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}</lang> |
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{{out}} |
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<pre> |
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2: [19, 31, 69, 81, 105, 106, 107, 119, 127, 131] |
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3: [261, 462, 471, 481, 558, 753, 1036, 1046, 1471, 1645] |
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4: [1168, 4972, 7423, 7752, 8431, 10267, 11317, 11487, 11549, 11680] |
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5: [4602, 5517, 7539, 12955, 14555, 20137, 20379, 26629, 32767, 35689] |
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6: [27257, 272570, 302693, 323576, 364509, 502785, 513675, 537771, 676657, 678146] |
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7: [140997, 490996, 1184321, 1259609, 1409970, 1783166, 1886654, 1977538, 2457756, 2714763] |
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8: [185423, 641519, 1551728, 1854230, 6415190, 12043464, 12147605, 15517280, 16561735, 18542300] |
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</pre> |
</pre> |
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