1522756

Appears in sequences

• a(n) = A057137(n)^2 where A057137 = 0,1,12,123,...,123...90,...at n=4A249181
• Squares not divisible by 10 with digits d_1, d_2, ... d_k such that d_1^2 + ... + d_k^2 is a square.at n=41A254959
• Squares whose arithmetic mean of digits is 4 (i.e., the sum of digits is 4 times the number of digits).at n=20A316484