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A031150
Appending a digit to n^2 gives another perfect square.
+0
2
1, 2, 4, 5, 6, 12, 18, 43, 80, 154, 191, 228, 456, 684, 1633, 3038, 5848, 7253, 8658, 17316, 25974, 62011, 115364, 222070, 275423, 328776, 657552, 986328, 2354785, 4380794, 8432812, 10458821, 12484830, 24969660, 37454490
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.
AT&T Labs Research
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