id:A033580 - OEIS Search Results

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Four times second pentagonal numbers: 2*n*(3*n+1).

+0
4

0, 8, 28, 60, 104, 160, 228, 308, 400, 504, 620, 748, 888, 1040, 1204, 1380, 1568, 1768, 1980, 2204, 2440, 2688, 2948, 3220, 3504, 3800, 4108, 4428, 4760, 5104, 5460, 5828, 6208, 6600, 7004, 7420, 7848 (list; graph; listen)

	OFFSET	`0,2`
	MATHEMATICA	`s=0; lst={s}; Do[s+=n++ +8; AppendTo[lst, s], {n, 0, 8!, 12}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Nov 16 2008]`
	CROSSREFS	`Cf. A049451, A045945, A033579.` `Adjacent sequences: A033577 A033578 A033579 this_sequence A033581 A033582 A033583` `Sequence in context: A009504 A001486 A045850 this_sequence A007331 A002408 A101127`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified November 8 20:39 EST 2009. Contains 166234 sequences.

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