G.f. A(x) satisfies A(x) = sqrt( (1 + 2*x*A(x)^3) * (1 + 2*x*A(x)) ).
A379328
G.f. A(x) satisfies A(x) = sqrt( (1 + 2*x*A(x)^3) * (1 + 2*x*A(x)) ).
Terms
- a(0) =1a(1) =2a(2) =8a(3) =44a(4) =272a(5) =1808a(6) =12616a(7) =91136a(8) =675712a(9) =5112576a(10) =39316480a(11) =306402304a(12) =2414543328a(13) =19207303168a(14) =154030314752
External references
- oeis: A379328