40628

Appears in sequences

• 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.at n=30A095705
• Numbers with distinct digits appearing in partition of decimal expansion of Pi.at n=17A104819
• a(n) is the number of iterations of the computation of the A351849 tag system when started from the word encoding n, or -1 if the number of iterations is infinite.at n=40A351850