a(n) = [x^(n^2)] (theta_3(x) - 1)^n/(2^n*(1 - x)), where theta_3() is the Jacobi theta function.
A302995
a(n) = [x^(n^2)] (theta_3(x) - 1)^n/(2^n*(1 - x)), where theta_3() is the Jacobi theta function.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =7a(4) =32a(5) =177a(6) =1269a(7) =9263a(8) =74452a(9) =652710a(10) =6078048a(11) =60447082a(12) =631870024a(13) =6915613084a(14) =79113376037a(15) =941759419159
External references
- oeis: A302995