Expansion of g.f. sqrt( (1+x - sqrt(1-18*x+x^2)) / (10*x*(1-18*x+x^2)) ).
A243947
Expansion of g.f. sqrt( (1+x - sqrt(1-18*x+x^2)) / (10*x*(1-18*x+x^2)) ).
Terms
- a(0) =1a(1) =11a(2) =155a(3) =2365a(4) =37555a(5) =610897a(6) =10098997a(7) =168894355a(8) =2849270515a(9) =48395044705a(10) =826479148001
External references
- oeis: A243947