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A102724
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Least sum of n distinct pairs of consecutive primes.
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2
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5, 13, 25, 43, 67, 97, 133, 175, 227, 287, 355, 433, 517, 607, 707, 819, 939, 1067, 1205, 1349, 1501, 1663, 1835, 2021, 2219, 2423, 2633, 2849, 3071, 3311, 3569, 3837, 4113, 4401, 4701, 5009, 5329, 5659, 5999, 6351, 6711, 7083, 7467, 7857, 8253, 8663, 9097
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Partial sums of A001043.
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EXAMPLE
| a(1) = 5 = (2+3).
a(2) = 13 = (2+3)+(3+5).
a(3) = 25 = (2+3)+(3+5)+(5+7).
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MATHEMATICA
| Table[Sum[Prime[i] + Prime[i + 1], {i, n}], {n, 47}] (Ray Chandler, Feb 12 2005)
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CROSSREFS
| Cf. A001043, A102725, A102729.
Sequence in context: A147205 A146875 A064276 * A147031 A147220 A196069
Adjacent sequences: A102721 A102722 A102723 * A102725 A102726 A102727
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KEYWORD
| easy,nonn
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AUTHOR
| Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Feb 07 2005
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EXTENSIONS
| Edited and extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Feb 12 2005
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