id:A013611 - OEIS Search Results

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Triangle of coefficients in expansion of (1+4x)^n.

+0
3

1, 1, 4, 1, 8, 16, 1, 12, 48, 64, 1, 16, 96, 256, 256, 1, 20, 160, 640, 1280, 1024, 1, 24, 240, 1280, 3840, 6144, 4096, 1, 28, 336, 2240, 8960, 21504, 28672, 16384, 1, 32, 448, 3584, 17920, 57344, 114688, 131072, 65536, 1, 36, 576, 5376, 32256 (list; table; graph; listen)

	OFFSET	`0,3`
	FORMULA	`G.f.: 1 / [1 - x(1+4y)].`
	CROSSREFS	`Sequence in context: A124848 A090219 A125129 this_sequence A077910 A100235 A089072` `Adjacent sequences: A013608 A013609 A013610 this_sequence A013612 A013613 A013614`
	KEYWORD	`tabl,nonn,easy`
	AUTHOR	`njas`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

AT&T Labs Research