A137159 G.f.: 1 = Sum_{n>=0} a(n)*x^n/(1+x)^(8*2^n).

1, 8, 92, 1976, 84086, 7173240, 1227862380, 421296930984, 289484024512093, 398106386971472608, 1095381029276651137560, 6028986377761538637043792, 66373632185586959347740452492, 1461497816340787260620205149915824

Offset

0,2

Comments

Equals unsigned column 3 of triangle A137156.

Links

Table of n, a(n) for n=0..13.

Prog

(PARI) {a(n)=polcoeff(1-sum(k=0, n-1, a(k)*x^k/(1+x+x*O(x^n))^(2^(k+3)) ), n)}

Crossrefs

Cf. A137156; A001192, A137157, A137158, A137160.

Sequence in context: A299083 A184142 A358888 * A356669 A099291 A087579

Adjacent sequences: A137156 A137157 A137158 * A137160 A137161 A137162

Keyword

nonn

Author

Paul D. Hanna, Jan 24 2008

Status

approved