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 A171211 G.f. satisfies: A(x) = (1 + x*A(2x))^8. 11
 1, 8, 156, 5944, 425286, 57811000, 15246040860, 7918843018760, 8165859019876353, 16781575370067304448, 68855523432488884833408, 564547878300963670909315840, 9253510119618208634494942344960 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS FORMULA Self-convolution 8th power of A171210 where a(n) = A171210(n+1)/2^n for n>=0. MATHEMATICA m = 13; A[_] = 0; Do[A[x_] = (1 + x A[2 x])^8 + O[x]^m // Normal, {m}]; CoefficientList[A[x], x] (* Jean-François Alcover, Nov 07 2019 *) PROG (PARI) {a(n)=local(A=1+x+x*O(x^n)); for(i=0, n, A=(1+x*subst(A, x, 2*x))^8); polcoeff(A, n)} CROSSREFS Cf. A135868, A171200-A171209, A171210. Sequence in context: A120348 A251586 A221098 * A211043 A025605 A114223 Adjacent sequences:  A171208 A171209 A171210 * A171212 A171213 A171214 KEYWORD nonn AUTHOR Paul D. Hanna, Dec 05 2009 STATUS approved

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Last modified July 26 20:34 EDT 2021. Contains 346295 sequences. (Running on oeis4.)