Triangle read by rows: T(n, k) is the number of squarefree integers x such that x<=primorial(n) and omega(n) = k with 0<=k<=n.

A261215

Triangle read by rows: T(n, k) is the number of squarefree integers x such that x<=primorial(n) and omega(n) = k with 0<=k<=n.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =1a(6) =1a(7) =10a(8) =7a(9) =1a(10) =1a(11) =46a(12) =62a(13) =19a(14) =1a(15) =1a(16) =343a(17) =643a(18) =359a(19) =58a(20) =1a(21) =1a(22) =3248a(23) =7429a(24) =5723a(25) =1708a(26) =152a(27) =1a(28) =1a(29) =42331

External references