id:A161870 - OEIS Search Results

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Convolution square of A000219, plane partitions: (1, 1, 3, 6, 13, 24,...).

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1, 2, 7, 18, 47, 110, 258, 568, 1237, 2600, 5380, 10870, 21652, 42350, 81778, 155676 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Equals [1,2,3,...][1,0,4,0,10,0,20,...][1,0,0,6,0,0,21,...][1,0,0,0,8,0,0,0,36,...]... [From Gary W. Adamson (qntmpkt(AT)yahoo.com), Jul 06 2009]`
	FORMULA	`Square of A000219 = (1 + x + 3x^2 +6x^3 +13x^4 + ...)^2`
	CROSSREFS	`A000219` `Sequence in context: A007991 A037294 A076857 this_sequence A072338 A022726 A017925` `Adjacent sequences: A161867 A161868 A161869 this_sequence A161871 A161872 A161873`
	KEYWORD	`nonn`
	AUTHOR	`Gary W. Adamson (qntmpkt(AT)yahoo.com), Jun 20 2009`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.