72475

Appears in sequences

• When squared gives number composed of digits {2,5,6}.at n=14A030486
• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 29 ones.at n=33A031797
• Numbers k such that k and k^2 use only the digits 2, 4, 5, 6 and 7.at n=50A137094
• Numbers k with squares that are concatenations k^2 = x//y such that x is an anagram of y.at n=33A162945
• a(n) is the number of distinct radii of circles passing through at least three points in a square grid of n X n points.at n=26A357301