Column 0 of triangular matrix A246381 = exp(L) where L(n,k) = C(2*n, 2*k+1)/2.

A246382

Column 0 of triangular matrix A246381 = exp(L) where L(n,k) = C(2*n, 2*k+1)/2.

Terms

    a(0) =1a(1) =1a(2) =3a(3) =12a(4) =73a(5) =584a(6) =5889a(7) =73184a(8) =1089057a(9) =19019632a(10) =384301729a(11) =8870379064a(12) =231356923985

External references