Expansion of e.g.f. Product_{i>=1, j>=1} (1 + x^(i*j)/(i*j)).
A318694
Expansion of e.g.f. Product_{i>=1, j>=1} (1 + x^(i*j)/(i*j)).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =10a(4) =40a(5) =248a(6) =1868a(7) =14516a(8) =131920a(9) =1409040a(10) =15697872a(11) =191687472a(12) =2663239104a(13) =37878672960a(14) =582357866400
External references
- oeis: A318694