1585081

Appears in sequences

• a(n) = (n!/4-1)^2.at n=3A181892
• Perfect squares k such that each decimal digit of k is equal to the difference of at least two other digits of k.at n=22A255893
• Squares whose arithmetic mean of digits is 4 (i.e., the sum of digits is 4 times the number of digits).at n=23A316484