Expansion of e.g.f. 1 / ( 1 - Sum_{k>=0} x^(3*k+1) / (3*k+1) ).
A365975
Expansion of e.g.f. 1 / ( 1 - Sum_{k>=0} x^(3*k+1) / (3*k+1) ).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =6a(4) =30a(5) =180a(6) =1260a(7) =10800a(8) =104760a(9) =1130760a(10) =13776480a(11) =184044960a(12) =2670220080a(13) =42222280320a(14) =718144004160
External references
- oeis: A365975