Expansion of e.g.f. exp(Sum_{i>=1} Sum_{j=1..i} x^(i*j) / (i*j)).
A327927
Expansion of e.g.f. exp(Sum_{i>=1} Sum_{j=1..i} x^(i*j) / (i*j)).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =6a(4) =30a(5) =150a(6) =1020a(7) =7140a(8) =63420a(9) =611100a(10) =6625080a(11) =72875880a(12) =977213160a(13) =12876743880a(14) =190951160400
External references
- oeis: A327927