a(n) is the permanent of the n-th order Hankel matrix M whose generic element is given by M(i,j) = A317614(i+j-1) with i,j = 1, ..., n.

A374668

a(n) is the permanent of the n-th order Hankel matrix M whose generic element is given by M(i,j) = A317614(i+j-1) with i,j = 1, ..., n.

Terms

    a(0) =1a(1) =1a(2) =31a(3) =10254a(4) =12238276a(5) =41596930860

External references