53999

Appears in sequences

• Expansion of 1/(1+x^2+x^3).at n=59A077962
• Numbers k such that the square of k contains sigma(k) as a substring, in base 10.at n=16A113654
• a(n) = 60*n^2 - 1.at n=29A158670
• a(n) = 54n^3 - 1.at n=9A181968