G.f. A(x) satisfies: -x^2 = Sum_{n=-oo..oo} (-1)^n * x^(n*(n+1)/2) * A(x)^(n*(n-1)/2).
A354647
G.f. A(x) satisfies: -x^2 = Sum_{n=-oo..oo} (-1)^n * x^(n*(n+1)/2) * A(x)^(n*(n-1)/2).
Terms
- a(0) =1a(1) =0a(2) =1a(3) =3a(4) =9a(5) =25a(6) =78a(7) =256a(8) =881a(9) =3064a(10) =10831a(11) =38766a(12) =140550a(13) =514625a(14) =1900301a(15) =7067013a(16) =26448613a(17) =99539716a(18) =376489459a(19) =1430330451a(20) =5455742957a(21) =20885223619a(22) =80213926069a(23) =309002022843
External references
- oeis: A354647