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A030151 Numbers n such that in n^2 the parity of digits alternates. +0
1
0, 1, 2, 3, 4, 5, 6, 7, 9, 11, 13, 16, 19, 23, 26, 27, 31, 36, 69, 74, 81, 84, 96, 111, 113, 119, 127, 137, 181, 187, 204, 237, 264, 269, 273, 277, 281, 296, 311, 384, 404, 426, 461, 463, 539, 574, 584, 606, 661, 673, 677, 689, 726, 736, 764, 819 (list; graph; listen)
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Last modified December 10 00:48 EST 2009. Contains 170565 sequences.


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