id:A165351 - OEIS Search Results

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First trisection of A026741.

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6

0, 3, 3, 9, 6, 15, 9, 21, 12, 27, 15, 33, 18, 39, 21, 45, 24, 51, 27, 57, 30, 63, 33, 69, 36, 75, 39, 81, 42, 87, 45, 93, 48, 99, 51, 105, 54, 111, 57, 117, 60, 123, 63, 129, 66, 135, 69, 141, 72, 147, 75, 153, 78, 159, 81, 165, 84, 171, 87, 177, 90, 183, 93, 189, 96, 195 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`The other trisections are A165355 and A165367.`
	FORMULA	`a(n) = A026741(3n) = 3A026741(n).` `a(2n) = A008585(n). a(2n+1)= A016945(n).` `G.f.: 3(1+x+x^2)x/((x-1)^2 * (1+x)^2 ).`
	CROSSREFS	`Sequence in context: A104195 A062131 A124871 this_sequence A156164 A065483 A019745` `Adjacent sequences: A165348 A165349 A165350 this_sequence A165352 A165353 A165354`
	KEYWORD	`nonn,easy`
	AUTHOR	`Paul Curtz (bpcrtz(AT)free.fr), Sep 16 2009`
	EXTENSIONS	`Edited and extended by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 26 2009`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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