id:A074756 - OEIS Search Results

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Least s > n such that tau(n!) divides tau(s!).

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2, 3, 4, 5, 8, 7, 11, 14, 21, 11, 20, 13, 26, 30, 26, 17, 27, 19, 54, 40, 60, 23, 42, 48, 48, 45, 44, 29, 108, 31, 54, 53, 66, 58, 90, 37, 55, 90, 75, 41, 77, 43, 59, 58, 126, 47, 130, 559, 559, 144, 77, 53, 123, 105, 105, 90, 74, 59, 119, 61, 119, 176, 344, 126, 126, 67 (list; graph; listen)

	OFFSET	`1,1`
	PROGRAM	`(PARI) a(n)=if(n<0, 0, s=n+1; while(numdiv(s!)%numdiv(n!)>0, s++); s)`
	CROSSREFS	`Sequence in context: A080785 A069797 A091893 this_sequence A075162 A056240 A069968` `Adjacent sequences: A074753 A074754 A074755 this_sequence A074757 A074758 A074759`
	KEYWORD	`easy,nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Sep 28 2002`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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