Expansion of 1/(1 - Sum_{k>=2} floor(1/omega(k))*x^k), where omega(k) is the number of distinct prime factors (A001221).

A280195

Expansion of 1/(1 - Sum_{k>=2} floor(1/omega(k))*x^k), where omega(k) is the number of distinct prime factors (A001221).

Terms

    a(0) =1a(1) =0a(2) =1a(3) =1a(4) =2a(5) =3a(6) =4a(7) =8a(8) =11a(9) =19a(10) =28a(11) =47a(12) =72a(13) =116a(14) =182a(15) =289a(16) =460a(17) =724a(18) =1153a(19) =1820a(20) =2891a(21) =4572a(22) =7249a(23) =11482a(24) =18190a(25) =28821a(26) =45651a(27) =72338a(28) =114582a(29) =181549

External references