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Search: id:A071602
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| A071602 |
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Sum of the reverses of the first n primes. |
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+0
1
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| 2, 5, 10, 17, 28, 59, 130, 221, 253, 345, 358, 431, 445, 479, 553, 588, 683, 699, 775, 792, 829, 926, 964, 1062, 1141, 1242, 1543, 2244, 3145, 3456, 4177, 4308, 5039, 5970, 6911, 7062, 7813, 8174, 8935, 9306, 10277, 10458, 10649, 11040, 11831
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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C. Rivera, PrimePuzzle.net, Shallit Minimal Primes Set (Puzzle No. 178)
J. Shallit, Minimal Primes, Journal of Recreational Mathematics, vol. 30.2 1999-2000 pp. 113-117, Baywood NY.
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EXAMPLE
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a(6) = reverse(2) + reverse(3) + reverse(5) + reverse(7) + reverse(11) + reverse(13) = 2 + 3 + 5 + 7 + 11 + 31 = 59.
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MATHEMATICA
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f[n_] := Sum[ FromDigits[ Reverse[ IntegerDigits[Prime[i]]]], {i, 1, n}]; Table[ f[n], {n, 1, 50}]
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CROSSREFS
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Cf. A007504, A114835.
Sequence in context: A007504 A049688 A011894 this_sequence A046485 A109377 A109472
Adjacent sequences: A071599 A071600 A071601 this_sequence A071603 A071604 A071605
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KEYWORD
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base,easy,nonn
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AUTHOR
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Joseph L. Pe (joseph_l_pe(AT)hotmail.com), Jun 02 2002
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EXTENSIONS
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Edited by Robert G. Wilson v (rgwv(AT)rgwv.com), Jun 07 2002
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