113221

Appears in sequences

• Composite squarefree numbers k such that p+1 divides k-1 for any prime p dividing k.at n=13A225711
• Expansion of the continued fraction 1 / (1-q / (1-q-q^3 / (1-q-q^3-q^5 / (1-q-q^3-q^5-q^7 / (...))))).at n=15A355046