G.f.: A(x) = 1 + Sum_{n>=1} x^n*A(x)^A000069(n), where A000069 lists numbers with an odd number of 1's in their binary expansion.
A195261
G.f.: A(x) = 1 + Sum_{n>=1} x^n*A(x)^A000069(n), where A000069 lists numbers with an odd number of 1's in their binary expansion.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =12a(4) =56a(5) =284a(6) =1520a(7) =8449a(8) =48303a(9) =282207a(10) =1677489a(11) =10112546a(12) =61678702a(13) =379919672a(14) =2359991520a(15) =14767164162a(16) =92993252612a(17) =588904075546
External references
- oeis: A195261