Triangular array read by rows: a(n, k) = sum of number of ordered factorizations of all prime signatures with n total prime factors and k distinct prime factors.

A095705

Triangular array read by rows: a(n, k) = sum of number of ordered factorizations of all prime signatures with n total prime factors and k distinct prime factors.

Terms

    a(0) =1a(1) =2a(2) =3a(3) =4a(4) =8a(5) =13a(6) =8a(7) =46a(8) =44a(9) =75a(10) =16a(11) =124a(12) =308a(13) =308a(14) =541a(15) =32a(16) =572a(17) =1790a(18) =2536a(19) =2612a(20) =4683a(21) =64a(22) =1568a(23) =8352a(24) =17028a(25) =24704a(26) =25988a(27) =47293a(28) =128a(29) =6728

External references