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A079210
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Positive divisors of n!, listed in increasing order for each n, a new row for each n.
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41
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1, 1, 1, 2, 1, 2, 3, 6, 1, 2, 3, 4, 6, 8, 12, 24, 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720
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OFFSET
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0,4
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COMMENTS
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Elements per row: 1,1,2,4,8,16,30,... (given by A027423, number of positive divisors of n!)
This sequence is the same as A070861 for the first 38 terms, but differs thereafter.
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LINKS
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EXAMPLE
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First few rows are:
1;
1;
1,2;
1,2,3,6;
1,2,3,4,6,8,12,24;
1,2,3,4,5,6,8,10,12,15,20,24,30,40,60,120;
...
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MATHEMATICA
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Flatten[Table[Divisors[n!], {n, 6}]] (* Harvey P. Dale, Mar 13 2011 *)
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PROG
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(PARI) tabf(nn) = for (n=0, nn, print(divisors(n!))); \\ Michel Marcus, Jun 19 2015
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CROSSREFS
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KEYWORD
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nonn,tabf
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AUTHOR
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Christian van den Bosch (cjb(AT)cjb.ie), Jan 03 2003
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EXTENSIONS
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STATUS
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approved
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