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A035329
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a(n) = n*(2*n+5)*(2*n+7).
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0
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0, 63, 198, 429, 780, 1275, 1938, 2793, 3864, 5175, 6750, 8613, 10788, 13299, 16170, 19425, 23088, 27183, 31734, 36765, 42300, 48363, 54978, 62169, 69960, 78375, 87438, 97173, 107604, 118755, 130650, 143313, 156768, 171039, 186150, 202125, 218988, 236763
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,2
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REFERENCES
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Eric Harold Neville, Jacobian Elliptic Functions, 2nd ed., p. 38.
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LINKS
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FORMULA
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a(n) = 4*n^3 + 24*n^2 + 35*n.
a(n) = 4*a(n-1) - 6*a(n-2) + 4*a(n-3) - a(n-4).
G.f.: 3*x*(21-18*x+5*x^2)/(1-x)^4. (End)
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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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EXTENSIONS
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STATUS
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approved
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