A117489 - OEIS

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A117489

Row sums of A117488 which has 1, 3, 5, 7, ... entries per row.

1, 6, 30, 115, 374, 1079, 2848, 7005, 16285, 36117, 76981, 158563, 317014, 617349, 1174400, 2187584, 3998057, 7181362, 12696179, 22120549, 38023748, 64546190, 108296742, 179729895, 295244362, 480358370, 774483006, 1238052200 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	COMMENTS	`Note that the central diagonal of table A117488 is 1 2 5 20 ...`
	EXAMPLE	`A117488 begins` `1` `1 2 3` `1 2 5 8 14` `1 2 5 10 18 30 49` `1 2 5 10 20 34 59 94 149` `so a(n) begins` `1 6 30 115 374 ...`
	CROSSREFS	`Cf. A115994, A117488.` `Sequence in context: A074007 A152573 A003211 * A050510 A055281 A056385` `Adjacent sequences: A117486 A117487 A117488 * A117490 A117491 A117492`
	KEYWORD	`nonn`
	AUTHOR	`Alford Arnold (Alford1940(AT)aol.com), Mar 22 2006`
	EXTENSIONS	`More terms from David Wasserman (dwasserm(AT)earthlink.net), Nov 03 2010`

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Last modified February 17 04:58 EST 2012. Contains 205985 sequences.