Expansion of g.f. A(x) satisfying 2 = Sum_{n=-oo..+oo} (-1)^n * x^(2*n) * (2*A(x) + x^(n-2))^(n+1).
A363107
Expansion of g.f. A(x) satisfying 2 = Sum_{n=-oo..+oo} (-1)^n * x^(2*n) * (2*A(x) + x^(n-2))^(n+1).
Terms
- a(0) =1a(1) =2a(2) =6a(3) =20a(4) =60a(5) =196a(6) =644a(7) =2128a(8) =7178a(9) =24374a(10) =83496a(11) =288420a(12) =1002272a(13) =3503748a(14) =12311818a(15) =43458316a(16) =154038006a(17) =548018604a(18) =1956263020a(19) =7004845080a(20) =25153186956a(21) =90554989440a(22) =326790211458
External references
- oeis: A363107