The second right hand column of triangle A167552.

A167553

The second right hand column of triangle A167552.

Terms

    a(0) =3a(1) =-5a(2) =14a(3) =-66a(4) =308a(5) =-2132a(6) =14064a(7) =-126480a(8) =1081632a(9) =-11925792a(10) =125458560a(11) =-1636387200a(12) =20447873280a(13) =-307814964480

External references