L.g.f.: -log( Sum_{n=-oo..+oo} (-p)^n * (p*x)^(n^2) ) = Sum_{n>=1} a(n) * x^n/n, where p = sqrt(3).
A337968
L.g.f.: -log( Sum_{n=-oo..+oo} (-p)^n * (p*x)^(n^2) ) = Sum_{n>=1} a(n) * x^n/n, where p = sqrt(3).
Terms
- a(0) =4a(1) =16a(2) =64a(3) =136a(4) =424a(5) =1216a(6) =2944a(7) =7696a(8) =24868a(9) =66016a(10) =187840a(11) =568864a(12) =1632232a(13) =4868992a(14) =14760064a(15) =43243552a(16) =129586312a(17) =390119248a(18) =1163757376a(19) =3491600176a(20) =10483526656a(21) =31391806528a(22) =94159476352a(23) =282588457024a(24) =847413793324
External references
- oeis: A337968