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A101180
Numbers n such that 19*n^2 + 19*n + 1 is a square.
+0
2
0, 8, 671, 15639, 42159, 981911, 77624048, 1807894920, 4873553880, 113507005568, 8973184757831, 208989037004319, 563373081435879
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified December 5 08:23 EST 2009. Contains 170348 sequences.
AT&T Labs Research
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