a(n) = (1/4!)*(A000522(4*n) + 6*A000522(2*n) + 8*A000522(n) + 9).

A086896

a(n) = (1/4!)*(A000522(4*n) + 6*A000522(2*n) + 8*A000522(n) + 9).

Terms

    a(0) =1a(1) =5a(2) =4585a(3) =54253051

External references