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A100500
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Prime(3n-2) + prime(3n-1) + prime(3n).
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0
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10, 31, 59, 97, 131, 173, 211, 251, 301, 329, 395, 439, 487, 533, 581, 633, 689, 731, 789, 829, 883, 941, 1015, 1061, 1119, 1169, 1229, 1285, 1331, 1381, 1433, 1493, 1553, 1645, 1703, 1757, 1807, 1849, 1915, 1959, 2011, 2075, 2155, 2215, 2269, 2329, 2417
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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LINKS
| C. Caldwell, The first 1000 primes.
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FORMULA
| a(n)=A034961(3n-2). [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Apr 20 2009, Jun 17 2009]
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EXAMPLE
| a(1) = 10 = 2 + 3 + 5 = prime (1) + prime (2) + prime(3).
a(2) = 31 = 7 + 11 + 13 = prime (4) + prime(5) + prime (6).
a(3) = 59 = 17 + 19 + 23 = prime (7) + prime (8) + prime(9)......
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MATHEMATICA
| Total/@Partition[Prime[Range[150]], 3] (* From Harvey P. Dale, May 25 2011 *)
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PROG
| (MAGMA) [&+[NthPrime(n+k): k in [0..2]]: n in [1..1000 by 3]]; // Vincenzo Librandi, Apr 23 2011
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CROSSREFS
| Cf. A000040.
Sequence in context: A187624 A187633 A063154 * A085473 A051943 A059306
Adjacent sequences: A100497 A100498 A100499 * A100501 A100502 A100503
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KEYWORD
| nonn
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AUTHOR
| Jun Mizuki (suzuki32(AT)sanken.osaka-u.ac.jp), Nov 23 2004
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EXTENSIONS
| Corrected A-number in formula R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jun 17 2009
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