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A172193
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a(n) = 5*n^2 + 31*n + 1.
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1
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1, 37, 83, 139, 205, 281, 367, 463, 569, 685, 811, 947, 1093, 1249, 1415, 1591, 1777, 1973, 2179, 2395, 2621, 2857, 3103, 3359, 3625, 3901, 4187, 4483, 4789, 5105, 5431, 5767, 6113, 6469, 6835, 7211, 7597, 7993, 8399, 8815, 9241, 9677, 10123, 10579
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OFFSET
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0,2
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LINKS
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FORMULA
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G.f.: (1+34*x-25*x^2)/(1-x)^3.
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MATHEMATICA
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CoefficientList[Series[(1 +34x -25x^2)/(1-x)^3, {x, 0, 60}], x] (* Vincenzo Librandi, Apr 07 2013 *)
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PROG
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(Magma) [ 5*n^2+31*n+1: n in [0..50] ];
(SageMath) [((10*n+31)^2 -941)/20 for n in (0..50)] # G. C. Greubel, Apr 28 2022
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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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EXTENSIONS
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STATUS
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approved
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