id:A087129 - OEIS Search Results

Search: id:A087129

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First differences of A087128.

+0
3

1, 3, 1, 7, 9, 3, 9, 3, 9, 12, 3, 12, 24, 9, 36, 3, 33, 3, 12, 9, 3, 12, 9, 12, 15, 24, 9, 12, 15, 33, 12, 24, 3, 9, 36, 3, 9, 24, 36, 27, 12, 12, 9, 3, 21, 96, 3, 9, 3, 12, 9, 3, 12, 105, 3, 60, 12, 9, 39, 45, 27, 9, 12, 3, 12, 12, 45, 12, 15, 33, 15, 21, 3, 9, 3, 12, 9, 24, 3, 33, 15, 9 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`It appears that, for n>4, a(n)=3k, for some integer k where k is not equal to 2 (mod 4). This has been verified for more than 3500 terms.`
	CROSSREFS	`Cf. A087128.` `Sequence in context: A137908 A019639 A011207 this_sequence A011308 A033465 A096431` `Adjacent sequences: A087126 A087127 A087128 this_sequence A087130 A087131 A087132`
	KEYWORD	`nonn`
	AUTHOR	`John W. Layman (layman(AT)math.vt.edu), Aug 16 2003`

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

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