a(n) = A255411(A265907(n)); also the first differences of A265907.

A265908

a(n) = A255411(A265907(n)); also the first differences of A265907.

Terms

    a(0) =4a(1) =22a(2) =256a(3) =2500a(4) =24598a(5) =262192a(6) =3005356a(7) =36562174a(8) =478487968a(9) =12927533332a(10) =280630789030

External references