Constant term of the reduction by x^2 -> x + 1 of the polynomial p(n,x) = Product_{k=1..n} (x+k).

A192936

Constant term of the reduction by x^2 -> x + 1 of the polynomial p(n,x) = Product_{k=1..n} (x+k).

Terms

    a(0) =1a(1) =1a(2) =3a(3) =13a(4) =71a(5) =463a(6) =3497a(7) =29975a(8) =287265a(9) =3042545a(10) =35284315a(11) =444617525a(12) =6048575335a(13) =88347242335

External references