id:A084090 - OEIS Search Results

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Divisible by 3 or exponent of highest power of 2 dividing a(n) is odd. Complement of A084087.

+0
3

0, 2, 3, 6, 8, 9, 10, 12, 14, 15, 18, 21, 22, 24, 26, 27, 30, 32, 33, 34, 36, 38, 39, 40, 42, 45, 46, 48, 50, 51, 54, 56, 57, 58, 60, 62, 63, 66, 69, 70, 72, 74, 75, 78, 81, 82, 84, 86, 87, 88, 90, 93, 94, 96, 98, 99, 102, 104, 105, 106, 108, 110, 111 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`a(n) is either in A008585 or A036554.` `It seems that lim(n->inf, a(n)/n) = 9/5.` `Positions of 0 in expansion of sum(k>=0, x^2^k/(1+x^2^k+x^2^(k+1))) (A084091).`
	PROGRAM	`(PARI) for(n=0, 300, if(valuation(n, 2)%2\|\|n%3==0, print1(n", ")))`
	CROSSREFS	`Sequence in context: A139371 A079338 A047405 this_sequence A047286 A093510 A013948` `Adjacent sequences: A084087 A084088 A084089 this_sequence A084091 A084092 A084093`
	KEYWORD	`nonn`
	AUTHOR	`Ralf Stephan (ralf(AT)ark.in-berlin.de), May 11 2003`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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