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239087, 29194283, 13459558559, 2330212120559, 591302115428891, 1475383481009147, 6659290813076243, 78234869090622611, 134532153287171039, 1936272192837757871, 12491376574210826183, 25493310333833042507
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OFFSET
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1,1
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COMMENTS
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Sum of squares of the first n^2 primes is A122209[n] = A024450[n^2] = {4,87,1556,13275,65796,239087,710844,1789395,4083404,8384727,16156884,29194283,...}. Corresponding numbers n such that A122209[n] is prime are listed in A122211[n] = {6,12,30,66,156,180,228,336,366,558,750,840,894,978,...}.
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LINKS
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FORMULA
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MATHEMATICA
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s=0; Do[p=Prime[n]; k=Sqrt[n]; s=s+p*p; If[PrimeQ[s]&&IntegerQ[k], Print[{k, n, s}]], {n, 1, 10^7}]
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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