Expansion of Jacobi theta function theta_3(x) = Sum_{m =-oo..oo} x^(m^2) (number of integer solutions to k^2 = n).
A000122
Expansion of Jacobi theta function theta_3(x) = Sum_{m =-oo..oo} x^(m^2) (number of integer solutions to k^2 = n).
Terms
- a(0) =1a(1) =2a(2) =0a(3) =0a(4) =2a(5) =0a(6) =0a(7) =0a(8) =0a(9) =2a(10) =0a(11) =0a(12) =0a(13) =0a(14) =0a(15) =0a(16) =2a(17) =0a(18) =0a(19) =0a(20) =0a(21) =0a(22) =0a(23) =0a(24) =0a(25) =2a(26) =0a(27) =0a(28) =0a(29) =0
External references
- oeis: A000122