E.g.f.: Sum_{n>=0} exp((2*n+1)*x) * (1 - x^(2*n+1)*exp(-(4*n+2)*x)) * x^n/(1 - x^(4*n+2)).
A257216
E.g.f.: Sum_{n>=0} exp((2*n+1)*x) * (1 - x^(2*n+1)*exp(-(4*n+2)*x)) * x^n/(1 - x^(4*n+2)).
Terms
- a(0) =1a(1) =1a(2) =13a(3) =61a(4) =641a(5) =7361a(6) =97885a(7) =1649229a(8) =30854689a(9) =642843937a(10) =15224371661a(11) =389990888189
External references
- oeis: A257216