A131477 - OEIS

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A131477

a(n)=ceiling(n^3/3).

0, 1, 3, 9, 22, 42, 72, 115, 171, 243, 334, 444, 576, 733, 915, 1125, 1366, 1638, 1944, 2287, 2667, 3087, 3550, 4056, 4608, 5209, 5859, 6561, 7318, 8130, 9000, 9931, 10923, 11979, 13102, 14292, 15552, 16885, 18291, 19773, 21334, 22974 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	LINKS	`Vincenzo Librandi, Table of n, a(n) for n = 0..10000`
	FORMULA	`G.f.: x(1+3x^2+2x^3)/((1-x)^4*(1+x+x^2)). a(n)=(A001093(n)-A049347(n))/3. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Dec 19 2008]`
	PROG	`(MAGMA) [Ceiling(n^3/3) : n in [0..50]]; // Vincenzo Librandi, Oct 01 2011`
	CROSSREFS	`Cf. A000982; A008619; A004526; A007590; A036487.` `Sequence in context: A007647 A098980 A063586 * A002128 A064808 A192389` `Adjacent sequences: A131474 A131475 A131476 * A131478 A131479 A131480`
	KEYWORD	`nonn`
	AUTHOR	`Mohammad K. Azarian (azarian(AT)evansville.edu), Jul 27 2007`

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Last modified February 14 06:58 EST 2012. Contains 205577 sequences.