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A171211
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G.f. satisfies: A(x) = (1 + x*A(2x))^8.
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11
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1, 8, 156, 5944, 425286, 57811000, 15246040860, 7918843018760, 8165859019876353, 16781575370067304448, 68855523432488884833408, 564547878300963670909315840, 9253510119618208634494942344960
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OFFSET
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0,2
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LINKS
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FORMULA
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Self-convolution 8th power of A171210 where a(n) = A171210(n+1)/2^n for n>=0.
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MATHEMATICA
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m = 13; A[_] = 0; Do[A[x_] = (1 + x A[2 x])^8 + O[x]^m // Normal, {m}];
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PROG
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(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)}
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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