Terms satisfy: a(2*n) = b(n)^2 and a(2*n+1) = b(n)*b(n+1) for n>=0 with a(0)=1, where A(x)^2 = Sum_{n>=0} b(n)*x^n and g.f. A(x) = Sum_{n>=0} a(n)*x^n.
A264927
Terms satisfy: a(2*n) = b(n)^2 and a(2*n+1) = b(n)*b(n+1) for n>=0 with a(0)=1, where A(x)^2 = Sum_{n>=0} b(n)*x^n and g.f. A(x) = Sum_{n>=0} a(n)*x^n.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =18a(4) =81a(5) =396a(6) =1936a(7) =9416a(8) =45796a(9) =234972a(10) =1205604a(11) =6188328a(12) =31764496a(13) =162249168a(14) =828748944a(15) =4224034452a(16) =21529399441a(17) =113085801048a(18) =593996986944
External references
- oeis: A264927