1517824

Appears in sequences

• Number of n X 4 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 0 and 1 1 1 vertically.at n=19A209220
• Squares which can be represented as sum of a prime and its reverse in at least one way.at n=5A227525
• Lexicographically first sequence of distinct positive squares, no two or more of which sum to a square.at n=14A306043
• Squares whose arithmetic mean of digits is 4 (i.e., the sum of digits is 4 times the number of digits).at n=19A316484
• Squares of the form k + reverse(k) for at least one k.at n=19A358880