Expansion of e.g.f. Product_{i>=1, j>=1} 1/(1 - x^(i*j)/(i*j)).
A318693
Expansion of e.g.f. Product_{i>=1, j>=1} 1/(1 - x^(i*j)/(i*j)).
Terms
- a(0) =1a(1) =1a(2) =4a(3) =16a(4) =100a(5) =628a(6) =5388a(7) =46212a(8) =491328a(9) =5381760a(10) =68023056a(11) =892073136a(12) =13238778144a(13) =201822014496
External references
- oeis: A318693