id:A121289 - OEIS Search Results

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a(n) = n/(largest triangular number dividing n).

+0
1

0, 1, 2, 1, 4, 5, 1, 7, 8, 3, 1, 11, 2, 13, 14, 1, 16, 17, 3, 19, 2, 1, 22, 23, 4, 25, 26, 9, 1, 29, 2, 31, 32, 11, 34, 35, 1, 37, 38, 13, 4, 41, 2, 43, 44, 1, 46, 47, 8, 49, 5, 17, 52, 53, 9, 1, 2, 19, 58, 59, 4, 61, 62, 3, 64, 65, 1, 67, 68, 23, 7, 71, 2, 73, 74, 5, 76, 77, 1, 79, 8, 27, 82 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`a(n) = n/(A115017(n))`
	MATHEMATICA	`f[n_] := Max[Select[Divisors[n], IntegerQ[(8# + 1)^(1/2)] & ]]; Table[n/f[n], {n, 0, 82}] (Chandler)`
	CROSSREFS	`Cf. A000217, A083312, A115017.` `Sequence in context: A124959 A081281 A108198 this_sequence A134248 A080935 A102661` `Adjacent sequences: A121286 A121287 A121288 this_sequence A121290 A121291 A121292`
	KEYWORD	`nonn`
	AUTHOR	`Leroy Quet (qq-quet(AT)mindspring.com), Aug 24 2006`
	EXTENSIONS	`Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Aug 29 2006`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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