id:A132332 - OEIS Search Results

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G.f.: A(x) = A_1 where A_1 = 1/[1 - x*(A_2)^2], A_2 = 1/[1 - x^2*(A_3)^2], A_3 = 1/[1 - x^3*(A_4)^2], ... A_n = 1/[1 - x^n*(A_{n+1})^2] for n>=1.

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1, 1, 1, 3, 5, 10, 23, 44, 93, 193, 398, 828, 1711, 3548, 7352, 15238, 31569, 65414, 135557, 280856, 581970, 1205860, 2498520, 5177008, 10726715, 22225674, 46051484, 95417966, 197704676, 409640915, 848768686, 1758633069, 3643854113 (list; graph; listen)

	OFFSET	`0,4`
	PROGRAM	`(PARI) {a(n)=local(A=1+xO(x^n)); for(j=0, n-1, A=1/(1-x^(n-j)A^2 +x*O(x^n))); polcoeff(A, n)}`
	CROSSREFS	`Cf. A132333 (self-convolution); A132334 (variant).` `Sequence in context: A102772 A018005 A080522 this_sequence A002039 A007695 A011969` `Adjacent sequences: A132329 A132330 A132331 this_sequence A132333 A132334 A132335`
	KEYWORD	`nonn`
	AUTHOR	`Paul D. Hanna (pauldhanna(AT)juno.com), Aug 20 2007`

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Last modified December 3 01:16 EST 2008. Contains 151161 sequences.

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