Expansion of g.f. (1-6*x+x^2)/(1-10*x+5*x^2).
A189334
Expansion of g.f. (1-6*x+x^2)/(1-10*x+5*x^2).
Terms
- a(0) =1a(1) =4a(2) =36a(3) =340a(4) =3220a(5) =30500a(6) =288900a(7) =2736500a(8) =25920500a(9) =245522500a(10) =2325622500a(11) =22028612500a(12) =208658012500
External references
- oeis: A189334