G.f. satisfies: 1 = Sum_{n>=0} (1+x)^(n*(n-1)/2) / A(x)^n * 1/2^(n+1).
A325286
G.f. satisfies: 1 = Sum_{n>=0} (1+x)^(n*(n-1)/2) / A(x)^n * 1/2^(n+1).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =25a(4) =343a(5) =6441a(6) =150975a(7) =4203201a(8) =134852079a(9) =4886641681a(10) =197154406591
External references
- oeis: A325286