516296

Appears in sequences

• Numbers k such that k and k^2 use only the digits 1, 2, 5, 6 and 9.at n=42A137006
• Expansion of Product_{k>0} ((1 - q^(2*k))^3*(1 - q^(6*k))*(1 - q^(12*k)))/((1 - q^k)^4*(1 - q^(4*k))).at n=21A293628