a(n) = permanent M_n where M_n is the n X n matrix m(i,j) = A000009(i+j).

A278841

a(n) = permanent M_n where M_n is the n X n matrix m(i,j) = A000009(i+j).

Terms

    a(0) =1a(1) =1a(2) =6a(3) =65a(4) =1737a(5) =91359a(6) =8755730a(7) =1465091787a(8) =420070484342

External references