Second column (m=2) of triangle S2hat(-2) = A144275.

A144277

Second column (m=2) of triangle S2hat(-2) = A144275.

Terms

    a(0) =1a(1) =2a(2) =14a(3) =100a(4) =1140a(5) =14880a(6) =249280a(7) =4801280a(8) =108574400a(9) =2767072000a(10) =79286592000

External references