G.f. A(x,y) satisfies: y = f(x,A(x,y)), where f(x,y) = Sum_{n=-oo..oo} x^(n*(n+1)/2) * y^(n*(n-1)/2) is Ramanujan's theta function.
A354649
G.f. A(x,y) satisfies: y = f(x,A(x,y)), where f(x,y) = Sum_{n=-oo..oo} x^(n*(n+1)/2) * y^(n*(n-1)/2) is Ramanujan's theta function.
Terms
- a(0) =-1a(1) =1a(2) =0a(3) =-3a(4) =3a(5) =-1a(6) =0a(7) =9a(8) =-27a(9) =30a(10) =-15a(11) =3a(12) =0a(13) =-22a(14) =147a(15) =-340a(16) =390a(17) =-246a(18) =83a(19) =-12a(20) =0a(21) =51a(22) =-630a(23) =2530a(24) =-5070a(25) =5928a(26) =-4284a(27) =1908a(28) =-486a(29) =55
External references
- oeis: A354649