Expansion of Product_{k>=2} 1/(1 - x^k)^omega(k), where omega(k) is the number of distinct primes dividing k (A001221).
A293548
Expansion of Product_{k>=2} 1/(1 - x^k)^omega(k), where omega(k) is the number of distinct primes dividing k (A001221).
Terms
- a(0) =1a(1) =0a(2) =1a(3) =1a(4) =2a(5) =2a(6) =5a(7) =4a(8) =8a(9) =9a(10) =15a(11) =16a(12) =28a(13) =29a(14) =46a(15) =54a(16) =77a(17) =90a(18) =131a(19) =150a(20) =211a(21) =251a(22) =337a(23) =401a(24) =540a(25) =637a(26) =839a(27) =1006a(28) =1296a(29) =1551
External references
- oeis: A293548