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A134089
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a(n) = [x^n] G(x)^(2^(n+1))/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.
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5
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1, 2, 8, 84, 2676, 275700, 94775156, 111378681460, 457034829332596, 6660551038769802356, 349287637698829559108724, 66597190541338218944629998708, 46556095585511177615107782087451764
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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FORMULA
| a(n) = A134087(n)/2^n.
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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]/2^n}
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CROSSREFS
| Cf. A134084, A134085, A134086, A134087, A134088.
Sequence in context: A134086 A013175 A120820 * A136647 A052456 A000532
Adjacent sequences: A134086 A134087 A134088 * A134090 A134091 A134092
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KEYWORD
| nonn
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AUTHOR
| Paul D. Hanna (pauldhanna(AT)juno.com), Oct 26 2007
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