Expansion of 1/sqrt(1 - 20*x - 20*x^2).
A106261
Expansion of 1/sqrt(1 - 20*x - 20*x^2).
Terms
- a(0) =1a(1) =10a(2) =160a(3) =2800a(4) =51400a(5) =970000a(6) =18640000a(7) =362800000a(8) =7128700000a(9) =141103000000
External references
- oeis: A106261
A106261
Expansion of 1/sqrt(1 - 20*x - 20*x^2).