a(n) = [x^(n^2)] (1 + theta_3(x))^n/(2^n*(1 - x)), where theta_3() is the Jacobi theta function.
A302863
a(n) = [x^(n^2)] (1 + theta_3(x))^n/(2^n*(1 - x)), where theta_3() is the Jacobi theta function.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =29a(4) =165a(5) =1203a(6) =9763a(7) =83877a(8) =793049a(9) =7903501a(10) =83570177a(11) =933697153a(12) =10905583809a(13) =133352809334
External references
- oeis: A302863