Expansion of (1/x) * Series_Reversion( x * (1 - x^2 / (1 - x)^2)^2 ).
A389693
Expansion of (1/x) * Series_Reversion( x * (1 - x^2 / (1 - x)^2)^2 ).
Terms
- a(0) =1a(1) =0a(2) =2a(3) =4a(4) =17a(5) =60a(6) =240a(7) =964a(8) =4004a(9) =16900a(10) =72514a(11) =315020a(12) =1383358a(13) =6129928a(14) =27376188a(15) =123094692a(16) =556796140a(17) =2531889312a(18) =11567394600a(19) =53071061120a(20) =244417096785
External references
- oeis: A389693