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A101378
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a(n) = n^2*(n^3+1)/2.
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1
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0, 1, 18, 126, 520, 1575, 3906, 8428, 16416, 29565, 50050, 80586, 124488, 185731, 269010, 379800, 524416, 710073, 944946, 1238230, 1600200, 2042271, 2577058, 3218436, 3981600, 4883125, 5941026, 7174818, 8605576, 10255995, 12150450, 14315056, 16777728, 19568241
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OFFSET
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0,3
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REFERENCES
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T. A. Gulliver, Sequences from Cubes of Integers, Int. Math. Journal, 4 (2003), 439-445.
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LINKS
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FORMULA
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G.f.: x*(1 + 12*x + 33*x^2 + 14*x^3)/(1 - x)^6. - Ilya Gutkovskiy, Feb 24 2017
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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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