a(n) = coefficient of x^n in the n-th iteration of Sum_{k>=0} x^(2^k), n>=1.
A168362
a(n) = coefficient of x^n in the n-th iteration of Sum_{k>=0} x^(2^k), n>=1.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =34a(4) =280a(5) =3010a(6) =39984a(7) =634040a(8) =11704548a(9) =246799212a(10) =5856139256a(11) =154509170816
External references
- oeis: A168362