id:A073066 - OEIS Search Results

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Least k such that n*prime(k) <= k*tau(k).

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2, 24, 180, 840, 2520, 5040, 15120, 27720, 55440, 110880, 166320, 221760, 332640, 554400, 720720, 1081080, 1441440, 1441440, 2162160, 2882880, 3603600, 4324320, 7207200, 7207200, 8648640, 10810800, 14414400, 21621600, 21621600, 21621600, 32432400, 36756720, 36756720, 43243200, 61261200, 73513440 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`a(n) divides a(n+1) for some n.`
	PROGRAM	`(PARI) a(n)=if(n<0, 0, s=1; while(nprime(s)>snumdiv(s), s++); s)`
	CROSSREFS	`Sequence in context: A013528 A108476 A052411 this_sequence A002736 A131972 A059387` `Adjacent sequences: A073063 A073064 A073065 this_sequence A073067 A073068 A073069`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Aug 17 2002`
	EXTENSIONS	`More terms from Donovan Johnson (donovan.johnson(AT)yahoo.com), Mar 06 2008`

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

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