a(0), a(1), a(2), ... satisfy Sum_{k=0..n} a(k)*binomial(n,k) = 2^binomial(n,2), for n >= 0.

A006129

a(0), a(1), a(2), ... satisfy Sum_{k=0..n} a(k)*binomial(n,k) = 2^binomial(n,2), for n >= 0.

Terms

    a(0) =1a(1) =0a(2) =1a(3) =4a(4) =41a(5) =768a(6) =27449a(7) =1887284a(8) =252522481a(9) =66376424160

External references