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A085477
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Numbers n such that there is at least one k dividing (n-1)!-1 (n<=k<=2n).
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0
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1, 2, 4, 6, 10, 12, 16, 18, 22, 28, 30, 36, 38, 40, 42, 43, 45, 46, 47, 49, 52, 53, 54, 56, 58, 60, 66, 68, 70, 72, 76, 78, 82, 84, 88, 96, 97, 99, 100, 102, 106, 108, 110, 112, 118, 120, 121, 123, 124, 126, 130, 132, 136, 138, 142, 148, 150, 154, 156, 162, 166, 169, 172
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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PROG
| (PARI) for(n=1, 250, if(sum(k=n, 2*n, if(((n-1)!-1)%k, 0, 1))>0, print1(n, ", ")))
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CROSSREFS
| Sequence in context: A107304 A082417 A161842 * A128984 A075728 A146886
Adjacent sequences: A085474 A085475 A085476 * A085478 A085479 A085480
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KEYWORD
| nonn
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AUTHOR
| Benoit Cloitre (benoit7848c(AT)orange.fr), Aug 14 2003
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