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A064602
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Partial sums of A001157: sum of sigma_2(j), j=1..n.
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6
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1, 6, 16, 37, 63, 113, 163, 248, 339, 469, 591, 801, 971, 1221, 1481, 1822, 2112, 2567, 2929, 3475, 3975, 4585, 5115, 5965, 6616, 7466, 8286, 9336, 10178, 11478, 12440, 13805, 15025, 16475, 17775, 19686, 21056, 22866, 24566, 26776, 28458, 30958
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| The subsequence of prime partial sums of A001157 begins: 37, 113, 163, 971, 1481, 112249, 122839, 140729, 145771, 232187, 347731. [From Jonathan Vos Post (jvospost3(AT)gmail.com), Feb 11 2010]
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LINKS
| T. D. Noe, Table of n, a(n) for n = 1..1000
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FORMULA
| a(n)=a(n-1)+A001157(n)= Sum_{sigma_2(j); j=1..n} where sigma_2(j)=A001157(j)
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CROSSREFS
| A001157, A064605.
Sequence in context: A171373 A048487 A124699 * A058272 A049712 A092274
Adjacent sequences: A064599 A064600 A064601 * A064603 A064604 A064605
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KEYWORD
| nonn
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AUTHOR
| Labos E. (labos(AT)ana.sote.hu), Sep 24 2001
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