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A134086 a(n) = [x^n] G(x)^(2^n) where G(x) satisfies: [x^(n+1)] G(x)^(2^n) = [x^n] G(x)^(2^n) for n>=0 and G(2x) is the g.f. of A134084. 5
1, 2, 8, 80, 2464, 255808, 90320512, 108630646016, 451779274750464, 6626041977171637248, 348460175972420307970048, 66523219303893985885632450560, 46531358180797100870477866170818560 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
FORMULA
a(n) = 2^n * A134088(n).
PROG
(PARI) {a(n)=local(A=[1], B); for(i=1, n, A=concat(A, 0); B=Vec(Ser(A)^(2^(#A-2))); A[ #A]=(B[ #B-1]-B[ #B])/2^(#A-2)); Vec(Ser(A)^(2^n))[n+1]}
CROSSREFS
Sequence in context: A323716 A360806 A229865 * A297566 A013175 A120820
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Oct 26 2007
STATUS
approved

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Last modified April 22 05:00 EDT 2024. Contains 371887 sequences. (Running on oeis4.)