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A053888
Numbers n such that n^2 contains only digits {1,2,9}.
+0
2
1, 3, 11, 173, 3161, 34827, 43923, 44623, 54123, 1108661, 9603239, 14832161, 9960980373, 1513668461761
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Maintained by
N. J. A. Sloane
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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.
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