171030

Appears in sequences

• Number of bracelets of length n using exactly three different colored beads.at n=13A056343
• Numbers k such that prime(k-1) + 7 is square and equal to prime(k+1) - 1.at n=5A158470
• Number of multisets of nonempty words with a total of n letters over binary alphabet such that within each prefix of a word every letter of the alphabet is at least as frequent as the subsequent alphabet letter.at n=16A293732