id:A133766 - OEIS Search Results

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a(n) = (4*n+1)*(4*n+3)*(4*n+5).

+0
5

15, 315, 1287, 3315, 6783, 12075, 19575, 29667, 42735, 59163, 79335, 103635, 132447, 166155, 205143, 249795, 300495, 357627, 421575, 492723, 571455, 658155, 753207, 856995, 969903, 1092315, 1224615, 1367187, 1520415, 1684683, 1860375 (list; graph; listen)

	OFFSET	`0,1`
	LINKS	`Index entries for sequences related to linear recurrences with constant coefficients`
	FORMULA	`G.f.: G(x) = 3(5+85x+39x^2-x^3)/(1-x)^4 E.g.f: E(x):=(15+300x+336x^2+64x^3)exp(x) sum(4/((4m+1)(4m+3)(4m+5)),m=0..infinity) = (Pi-2)/4`
	MAPLE	`seq((4n+1)(4n+3)(4*n+5), n=0..40);`
	CROSSREFS	`Sequence in context: A135390 A105491 A158533 this_sequence A112489 A062757 A088913` `Adjacent sequences: A133763 A133764 A133765 this_sequence A133767 A133768 A133769`
	KEYWORD	`easy,nonn`
	AUTHOR	`Miklos Kristof (kristmikl(AT)freemail.hu), Jan 02 2008`

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

AT&T Labs Research