A165351 - OEIS

This site is supported by donations to The OEIS Foundation.

A165351

First trisection of A026741.

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; refs; listen; history; internal format)

	OFFSET	`0,2`
	COMMENTS	`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: A199663 A124871 A197414 * A200494 A156164 A198613` `Adjacent sequences: A165348 A165349 A165350 * 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`

Content is available under The OEIS End-User License Agreement .

Last modified February 17 16:00 EST 2012. Contains 206050 sequences.