Expansion of Product_{j=1..n, k=1..n} (1 + x^(k^j)) / (1 - x^(k^j)).
A361805
Expansion of Product_{j=1..n, k=1..n} (1 + x^(k^j)) / (1 - x^(k^j)).
Terms
- a(0) =1a(1) =2a(2) =10a(3) =52a(4) =278a(5) =1508a(6) =8262a(7) =45604a(8) =253186a(9) =1412196a(10) =7906866a(11) =44411420a(12) =250124308a(13) =1411963200a(14) =7986664250a(15) =45255888828a(16) =256840959728
External references
- oeis: A361805