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A054214
Numbers n such that n concatenated with n-1 is a square.
+0
9
82, 8242, 9802, 538277, 998002, 77837026, 99980002, 7922547265, 8643251345, 9223797610, 9999800002, 106710893290, 453378226757, 491023832065, 945958034530, 999998000002, 11916002265170, 15790977390245, 24917378001937
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Maintained by
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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.
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