Second column (m=2) of triangle S2p(-2) = A004747.

A144345

Second column (m=2) of triangle S2p(-2) = A004747.

Terms

    a(0) =1a(1) =6a(2) =52a(3) =600a(4) =8680a(5) =151200a(6) =3082240a(7) =71998080a(8) =1896294400a(9) =55601145600

External references