Coefficient of x in the reduction of the polynomial x(x+1)(x+2)...(x+n-1) by x^2 -> x+1.
A192239
Coefficient of x in the reduction of the polynomial x(x+1)(x+2)...(x+n-1) by x^2 -> x+1.
Terms
- a(0) =0a(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
- oeis: A192239