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Search: id:A122208
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| 1, 2, 8, 10, 22, 26, 28, 32, 36, 78, 88, 110, 150, 152, 154, 232, 252, 258, 264, 316, 320, 324, 368, 376, 426, 496, 516, 532, 608, 644, 666, 686, 764, 828, 832, 880, 932, 958, 1020, 1090, 1096, 1106, 1122, 1156, 1174, 1206, 1264, 1280, 1282, 1290, 1296, 1326
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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Corresponding primes that are equal to the sum of the first a(n)^2 primes are listed in A122207(n) = {2, 17, 8893, 24133, 768373, 1583293, 2180741, 3875933, 6426919, 173472547, 289093219, 741938801, 2738357903, 2895147163, 3058653607, ...}. - Robert G. Wilson v Sep 29 2006
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FORMULA
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A122207(n) = A109724( a(n) ) = A007504( a(n)^2 ). - Robert G. Wilson v Sep 29 2006
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MATHEMATICA
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s = 0; t = {}; Do[s = s + Sum[Prime@k, {k, (n - 1)^2 + 1, n^2}]; If[PrimeQ@s, AppendTo[t, n]], {n, 1341}]; t (* Robert G. Wilson v *)
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CROSSREFS
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Cf. A122207, A109724, A007504.
Sequence in context: A108468 A165593 A127219 this_sequence A106358 A002510 A102943
Adjacent sequences: A122205 A122206 A122207 this_sequence A122209 A122210 A122211
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KEYWORD
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nonn
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AUTHOR
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Alexander Adamchuk (alex(AT)kolmogorov.com), Aug 25 2006
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EXTENSIONS
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More terms from Robert G. Wilson v Sep 29 2006
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