Self-convolution square-root of A004381, where A004381(n) = binomial(8*n,n).

A383965

Self-convolution square-root of A004381, where A004381(n) = binomial(8*n,n).

Terms

    a(0) =1a(1) =4a(2) =52a(3) =804a(4) =13412a(5) =233548a(6) =4180932a(7) =76307228a(8) =1412731844a(9) =26443784224a(10) =499310856828

External references