E.g.f.: A(x) = exp( Sum_{n>=1} x^(n*(n+1)/2) ).
A193375
E.g.f.: A(x) = exp( Sum_{n>=1} x^(n*(n+1)/2) ).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =7a(4) =25a(5) =61a(6) =1201a(7) =7771a(8) =30577a(9) =514585a(10) =8089921a(11) =63701551a(12) =832599241a(13) =14055894997a(14) =137066892145
External references
- oeis: A193375