522729

Appears in sequences

• Least square beginning with the digit reversal of n^2.at n=14A111443
• Squares which when subtracted from their reverse form nonzero squares.at n=2A152071
• Number of nX4 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 0 and 1 0 1 vertically.at n=7A207854
• 2*k-digit squares with the left half being a reversed k-digit square and the right half being a k-digit square.at n=4A367378