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A018884
Squares using at most two distinct digits, not ending in 0 (no other term < 10^41; probably finite).
+0
4
1, 4, 9, 16, 25, 36, 49, 64, 81, 121, 144, 225, 441, 484, 676, 1444, 7744, 11881, 29929, 44944, 55225, 69696, 9696996, 6661661161
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Maintained by
N. J. A. Sloane
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Last modified December 4 15:11 EST 2009. Contains 170347 sequences.
AT&T Labs Research
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