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A167214
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a(n) = (sum of first n primes) * n.
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2
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2, 10, 30, 68, 140, 246, 406, 616, 900, 1290, 1760, 2364, 3094, 3934, 4920, 6096, 7480, 9018, 10792, 12780, 14952, 17402, 20102, 23112, 26500, 30186, 34128, 38388, 42920, 47790, 53320, 59232, 65604, 72318, 79660, 87372, 95608, 104386, 113646, 123480
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OFFSET
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1,1
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COMMENTS
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a(n) has the asymptotic expression a(n) ~ n^3 * log(n) / 2.
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LINKS
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Asymptotic Expression for a(n) is a direct extension of asymptotic expression for A007504(n).
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FORMULA
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MAPLE
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seq(n*add(ithprime(j), j = 1 .. n), n = 1 .. 40); # Emeric Deutsch, Nov 01 2009
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MATHEMATICA
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s=0; Table[s=s+Prime[n]; s*n, {n, 50}]
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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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