Numerators of second column of the inverse of the triangle of polynomial coefficients P(0,x)=1, 2P(n,x)=(1+x)*[(1+x)^(n-1)+x^(n-1)].

A141424

Numerators of second column of the inverse of the triangle of polynomial coefficients P(0,x)=1, 2P(n,x)=(1+x)*[(1+x)^(n-1)+x^(n-1)].

Terms

    a(0) =1a(1) =-3a(2) =3a(3) =-5a(4) =5a(5) =-7a(6) =7a(7) =3a(8) =-3a(9) =-121a(10) =121a(11) =1261a(12) =-1261a(13) =-20583a(14) =20583a(15) =888403a(16) =-888403a(17) =-24729925a(18) =24729925a(19) =862992399a(20) =-862992399a(21) =-36913939769a(22) =36913939769

External references