Column 2 of triangle A136590.

A136592

Column 2 of triangle A136590.

Terms

    a(0) =1a(1) =3a(2) =-13a(3) =-10a(4) =394a(5) =-2016a(6) =-5076a(7) =170064a(8) =-1155024a(9) =-5005440a(10) =193724640a(11) =-1656720000a(12) =-10280355840a(13) =465087087360

External references