235065

Appears in sequences

• Numbers k such that k^2 contains only digits {2,4,5}.at n=16A031154
• a(n)^2 is the smallest square containing exactly n 5's.at n=6A048350
• Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 605", based on the 5-celled von Neumann neighborhood.at n=8A273176