G.f.: 1 / AGM(1-5*x, sqrt((1-x)*(1-25*x))).
A246467
G.f.: 1 / AGM(1-5*x, sqrt((1-x)*(1-25*x))).
Terms
- a(0) =1a(1) =9a(2) =121a(3) =2025a(4) =38025a(5) =762129a(6) =15912121a(7) =341621289a(8) =7484845225a(9) =166549691025
External references
- oeis: A246467