382537

Appears in sequences

• Numbers which are both 12-gonal and centered 12-gonal numbers.at n=2A133274
• Semiprime 12-gonal numbers.at n=15A380069
• a(n) = (n^2 - n + 2) * (5*n^2 - 5*n + 2) / 4.at n=23A380353