Second (unsigned) column sequence of triangle A062140 (generalized a=4 Laguerre).

A062199

Second (unsigned) column sequence of triangle A062140 (generalized a=4 Laguerre).

Terms

    a(0) =1a(1) =12a(2) =126a(3) =1344a(4) =15120a(5) =181440a(6) =2328480a(7) =31933440a(8) =467026560a(9) =7264857600a(10) =119870150400

External references