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A134087 a(n) = [x^n] G(x)^(2^(n+1)) 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, 4, 32, 672, 42816, 8822400, 6065609984, 14256471226880, 117000916309144576, 3410202131850138806272, 357670541003601468527333376, 136391046228660672398602237353984 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
FORMULA
a(n) = 2^n * A134089(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+1)))[n+1]}
CROSSREFS
Sequence in context: A006024 A118995 A222829 * A132854 A136471 A243918
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Oct 26 2007
STATUS
approved

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Last modified May 20 08:05 EDT 2024. Contains 372703 sequences. (Running on oeis4.)