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A017126
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a(n) = (8*n + 5)^2.
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3
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25, 169, 441, 841, 1369, 2025, 2809, 3721, 4761, 5929, 7225, 8649, 10201, 11881, 13689, 15625, 17689, 19881, 22201, 24649, 27225, 29929, 32761, 35721, 38809, 42025, 45369, 48841, 52441, 56169, 60025, 64009, 68121, 72361, 76729, 81225, 85849, 90601, 95481, 100489, 105625
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OFFSET
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0,1
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LINKS
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FORMULA
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G.f.: ( -25 - 94*x - 9*x^2 ) / (x-1)^3. - R. J. Mathar, May 08 2015
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MATHEMATICA
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PROG
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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