Second column (m=2) of triangle S2hat(-3) = A144280.

A144282

Second column (m=2) of triangle S2hat(-3) = A144280.

Terms

    a(0) =1a(1) =3a(2) =30a(3) =294a(4) =4599a(5) =81081a(6) =1837836a(7) =47609100a(8) =1449052605a(9) =49597258095

External references