G.f. A(x) satisfies: A(x) = 1 + x^2 * A(x/(1 - 4*x)) / (1 - 4*x).
A351150
G.f. A(x) satisfies: A(x) = 1 + x^2 * A(x/(1 - 4*x)) / (1 - 4*x).
Terms
- a(0) =1a(1) =0a(2) =1a(3) =4a(4) =17a(5) =80a(6) =433a(7) =2724a(8) =19489a(9) =153536a(10) =1301601a(11) =11754084a(12) =112802097a(13) =1150079056a(14) =12437130001a(15) =142144768324
External references
- oeis: A351150