id:A024458 - OEIS Search Results

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a(n) = s(1)s(n) + s(2)s(n-1) + ... + s(k)s(n+1-k), where k = [ (n+1)/2 ], s = (Fibonacci numbers).

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1, 1, 3, 5, 12, 19, 40, 65, 130, 210, 404, 654, 1227, 1985, 3653, 5911, 10720, 17345, 31090, 50305, 89316, 144516, 254568, 411900, 720757, 1166209, 2029095, 3283145, 5684340, 9197455, 15855964, 25655489, 44061862, 71293590, 122032508 (list; graph; listen)

	OFFSET	`1,3`
	FORMULA	`G.f.: x(x^3-x^2+1)/[(1+x^2)(1+x-x^2)(1-x-x^2)^2].`
	CROSSREFS	`Sequence in context: A025088 A082740 A010067 this_sequence A143643 A089292 A143360` `Adjacent sequences: A024455 A024456 A024457 this_sequence A024459 A024460 A024461`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`
	EXTENSIONS	`More terms from James A. Sellers (sellersj(AT)math.psu.edu), May 03 2000`

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Last modified December 19 12:50 EST 2009. Contains 171053 sequences.

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