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A075873
40*n^2 + 9 is a square.
+0
1
0, 1, 2, 9, 40, 77, 342, 1519, 2924, 12987, 57682, 111035, 493164, 2190397, 4216406, 18727245, 83177404, 160112393, 711142146, 3158550955, 6080054528, 27004674303, 119941758886, 230881959671, 1025466481368, 4554628286713
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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 17 23:40 EST 2009. Contains 171025 sequences.
AT&T Labs Research
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