505025

Appears in sequences

• Numbers k such that the decimal expansion of k^2 contains k as a substring.at n=41A018834
• Numbers k such that decimal expansion of k^2 contains k as a substring and k does not end in 0.at n=13A046831
• Internal digits of n^2 include digits of n as substring.at n=25A046836
• Internal digits of k^2 include digits of k as substring, k does not end in 0.at n=3A046837
• Numbers k such that (k - digitsum(k))(k + digitsum(k)) contains k as a substring.at n=18A334249