E.g.f. equals the series reversion of x - x*arctan(x).
A227460
E.g.f. equals the series reversion of x - x*arctan(x).
Terms
- a(0) =1a(1) =2a(2) =12a(3) =112a(4) =1440a(5) =23664a(6) =473984a(7) =11203200a(8) =305268480a(9) =9421739520a(10) =324874716672
External references
- oeis: A227460