Expansion of (Sum_{n=-inf..inf} x^(n^2))^(-20).
A004421
Expansion of (Sum_{n=-inf..inf} x^(n^2))^(-20).
Terms
- a(0) =1a(1) =-40a(2) =840a(3) =-12320a(4) =141640a(5) =-1358448a(6) =11297440a(7) =-83631680a(8) =561539400a(9) =-3468363400a(10) =19922193200a(11) =-107343635040a(12) =546373245600
External references
- oeis: A004421