A026735 - OEIS

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A026735

Sum{T(n-k,k)}, 0<=k<=[ n/2 ], T given by A026725.

1, 1, 2, 3, 6, 9, 15, 28, 43, 71, 130, 201, 331, 597, 928, 1525, 2720, 4245, 6965, 12315, 19280, 31595, 55472, 87067, 142539, 248802, 391341, 640143, 1111864, 1752007, 2863871, 4953162, 7817033, 12770195, 22004810, 34775005, 56779815 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	FORMULA	`Conjecture: G.f.:-1/2(2x^6-5x^4+8x^3+x-2+x(x-1)(x^2+x+1)(1-4x^3)^(1/2))/(x^6+4*x^3-1)/(x^2+x-1) [From Maksym Voznyy (voznyy(AT)mail.ru), Aug 11 2009]`
	CROSSREFS	`Sequence in context: A114323 A018158 A057928 * A006868 A067435 A035494` `Adjacent sequences: A026732 A026733 A026734 * A026736 A026737 A026738`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified February 15 19:15 EST 2012. Contains 205852 sequences.