G.f. satisfies A(x) = 1 - x*A(x)*(1 - 2*A(x)^3).
A364430
G.f. satisfies A(x) = 1 - x*A(x)*(1 - 2*A(x)^3).
Terms
- a(0) =1a(1) =1a(2) =7a(3) =61a(4) =603a(5) =6443a(6) =72517a(7) =846995a(8) =10170685a(9) =124780525a(10) =1557347467a(11) =19710577873a(12) =252386341335
External references
- oeis: A364430