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

Author

Paul D. Hanna, Jan 24 2008

Keywords

• nonn

Comments

Equals unsigned column 3 of triangle A137156.

Crossrefs

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

Programs

PARI

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