Expansion of: G.f.: 2-(2*x)/(1-sqrt(sqrt(1-16*x)+1)/sqrt(2)).
A249520
Expansion of: G.f.: 2-(2*x)/(1-sqrt(sqrt(1-16*x)+1)/sqrt(2)).
Terms
- a(0) =1a(1) =5a(2) =17a(3) =134a(4) =1333a(5) =14890a(6) =178394a(7) =2240268a(8) =29101197a(9) =387793090a(10) =5271628846a(11) =72818272852
External references
- oeis: A249520