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Search: id:A161463
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| A161463 |
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Sum of all primes from n-th prime to (2*n-1)-th prime. |
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+0
1
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| 2, 8, 23, 48, 83, 132, 197, 270, 363, 468, 583, 714, 863, 1026, 1199, 1392, 1607, 1836, 2083, 2346, 2627, 2926, 3237, 3564, 3925, 4290, 4669, 5074, 5499, 5938, 6389, 6862, 7355, 7866, 8411, 8964, 9539, 10134, 10743, 11374, 12029, 12702, 13393, 14094
(list; graph; listen)
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OFFSET
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1,1
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EXAMPLE
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Sum of 3rd prime to 5th prime = 5+7+11, hence a(3) = 23; sum of 4th prime to 7th prime = 7+11+13+17, hence a(4) = 48.
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PROGRAM
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(MAGMA) [ &+[ NthPrime(k): k in [n..2*n-1] ]: n in [1..44] ]; [From Klaus Brockhaus, Jun 12 2009]
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CROSSREFS
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Cf. A000040 (primes), A007504 (sum of first n primes), A105720 (sum of n-th and next n primes).
Sequence in context: A151356 A158466 A065694 this_sequence A014285 A079460 A154144
Adjacent sequences: A161460 A161461 A161462 this_sequence A161464 A161465 A161466
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KEYWORD
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nonn
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AUTHOR
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Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Jun 10 2009
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EXTENSIONS
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Edited, corrected and extended by Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Jun 12 2009
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