Left factorials: Difference between revisions
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10000 35656</lang> |
10000 35656</lang> |
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=={{header|Mathematica}}== |
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<lang Mathematica>left[n_] := left[n] = Sum[k!, {k, 0, n - 1}] |
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Print["left factorials 0 through 10:"] |
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Print[left /@ Range[0, 10] // TableForm] |
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Print["left factorials 20 through 110, by tens:"] |
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Print[left /@ Range[20, 110, 10] // TableForm] |
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Print["Digits in left factorials 1,000 through 10,000, by thousands:"] |
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Print[Length[IntegerDigits[left[#]]] & /@ Range[1000, 10000, 1000] // TableForm]</lang> |
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{{out}} |
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<pre>left factorials 0 through 10: |
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0 |
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1 |
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2 |
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4 |
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10 |
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34 |
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154 |
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874 |
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5914 |
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46234 |
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409114 |
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left factorials 20 through 110, by tens: |
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128425485935180314 |
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9157958657951075573395300940314 |
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20935051082417771847631371547939998232420940314 |
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620960027832821612639424806694551108812720525606160920420940314 |
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141074930726669571000530822087000522211656242116439949000980378746128920420940314 |
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173639511802987526699717162409282876065556519849603157850853034644815111221599509216528920420940314 |
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906089587987695346534516804650290637694024830011956365184327674619752094289696314882008531991840922336528920420940314 |
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16695570072624210767034167688394623360733515163575864136345910335924039962404869510225723072235842668787507993136908442336528920420940314 |
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942786239765826579160595268206839381354754349601050974345395410407078230249590414458830117442618180732911203520208889371641659121356556442336528920420940314 |
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145722981061585297004706728001906071948635199234860720988658042536179281328615541936083296163475394237524337422204397431927131629058103519228197429698252556442336528920420940314 |
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Digits in left factorials 1,000 through 10,000, by thousands: |
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2565 |
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5733 |
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9128 |
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12670 |
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16322 |
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20062 |
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23875 |
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27749 |
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31678 |
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35656 |
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</pre> |
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=={{header|PARI/GP}}== |
=={{header|PARI/GP}}== |