E.g.f.: Series_Reversion( Sum_{n>=1} (-1)^(n-1) * x^(2*n-1)/(n*(n+1)/2) ) = Sum_{n>=1} a(n)*x^(2*n-1)/(2*n-1)!.
A277414
E.g.f.: Series_Reversion( Sum_{n>=1} (-1)^(n-1) * x^(2*n-1)/(n*(n+1)/2) ) = Sum_{n>=1} a(n)*x^(2*n-1)/(2*n-1)!.
Terms
- a(0) =1a(1) =2a(2) =20a(3) =504a(4) =23968a(5) =1851520a(6) =211575936a(7) =33566973440
External references
- oeis: A277414