A119970 Binomial transform of A119969.

1, 1, 2, 5, 11, 21, 37, 67, 140, 341, 881, 2223, 5292, 11805, 24767, 49203, 93312, 170801, 307550, 564341, 1114531, 2493085, 6336892, 17433725, 49041291, 135933981, 364835251, 942294187, 2340123130, 5595955421, 12914346267

Offset

0,3

Comments

Partial sums of A119971.

Appears to obey a 5-term hypergeometric recurrence with 4-degree polynomials. - R. J. Mathar, Nov 05 2012

Links

Table of n, a(n) for n=0..30.

Formula

G.f.: sum{k>=0, (x^2/(1-x)^3)^(2^k-1)}/(1-x); a(n)=sum{k=0..n, C(n,k)*A119969(k)}.

Crossrefs

Sequence in context: A365252 A003522 A112805 * A326509 A082775 A023548

Adjacent sequences: A119967 A119968 A119969 * A119971 A119972 A119973

Keyword

easy,nonn

Author

Paul Barry, Jun 01 2006

Status

approved