G.f.: 1/(1-x) = Sum_{n>=0} a(n)*x^n/(1+x)^(2^(n+1)-2).
A172402
G.f.: 1/(1-x) = Sum_{n>=0} a(n)*x^n/(1+x)^(2^(n+1)-2).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =16a(4) =166a(5) =3464a(6) =146167a(7) =12437880a(8) =2127406440a(9) =729774938584
External references
- oeis: A172402