a(n) = [x^n] 1/(1 + (1/2)*n*(1 - theta_3(x))), where theta_3() is the Jacobi theta function.
A301335
a(n) = [x^n] 1/(1 + (1/2)*n*(1 - theta_3(x))), where theta_3() is the Jacobi theta function.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =27a(4) =260a(5) =3175a(6) =47304a(7) =833147a(8) =16941120a(9) =390611331a(10) =10070060200a(11) =287028156162
External references
- oeis: A301335