G.f. A(x) satisfies: A(x) = 1 + x + x^2 * A(x/(1 + 5*x)) / (1 + 5*x).
A351186
G.f. A(x) satisfies: A(x) = 1 + x + x^2 * A(x/(1 + 5*x)) / (1 + 5*x).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =-4a(4) =16a(5) =-69a(6) =371a(7) =-2719a(8) =24691a(9) =-243804a(10) =2479276a(11) =-25931249a(12) =284075601a(13) =-3320433179a(14) =41744590941a(15) =-561939568544
External references
- oeis: A351186