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A271511
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a(n) = (p+1)*(p+2)/2 where p is the n-th prime.
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2
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6, 10, 21, 36, 78, 105, 171, 210, 300, 465, 528, 741, 903, 990, 1176, 1485, 1830, 1953, 2346, 2628, 2775, 3240, 3570, 4095, 4851, 5253, 5460, 5886, 6105, 6555, 8256, 8778, 9591, 9870, 11325, 11628, 12561, 13530, 14196, 15225, 16290, 16653, 18528, 18915, 19701
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OFFSET
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1,1
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COMMENTS
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LINKS
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MATHEMATICA
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Table[(Prime[n]^2 + 3 Prime[n] + 2) / 2, {n, 50}]
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PROG
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(Magma) [(p+1)*(p+2) / 2: p in PrimesUpTo(200)];
(PARI) lista(nn) = forprime(p=2, nn, print1((p+1)*(p+2)/2, ", ")); \\ Altug Alkan, Apr 09 2016
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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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