id:A101098 - OEIS Search Results

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a(1)=1; thereafter, a(n+1) = 20n^3 + 10n.

+0
4

1, 30, 180, 570, 1320, 2550, 4380, 6930, 10320, 14670, 20100, 26730, 34680, 44070, 55020, 67650, 82080, 98430, 116820, 137370, 160200, 185430, 213180, 243570, 276720, 312750, 351780, 393930, 439320, 488070, 540300, 596130, 655680, 719070 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Shells (nexus numbers) of shells of the fifth powers (A000584).`
	LINKS	`C. Rossiter, Depictions, Explorations and Formulas of the Euler/Pascal Cube.`
	FORMULA	`a(n)=A068236(n-2), n>1. G.f.: x+30x^2(1+x)^2/(1-x)^4. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 02 2008`
	CROSSREFS	`Sequence in context: A140594 A100430 A068236 this_sequence A054559 A042756 A042758` `Adjacent sequences: A101095 A101096 A101097 this_sequence A101099 A101100 A101101`
	KEYWORD	`easy,nonn`
	AUTHOR	`Cecilia Rossiter (cecilia(AT)noticingnumbers.net), Dec 15 2004`
	EXTENSIONS	`Edited by Ralf Stephan, Dec 16 2004`

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Last modified November 30 22:12 EST 2008. Contains 150989 sequences.

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