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A118625
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Primes p such that the nearest integer to p * K is prime, where K is Catalan's constant.
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2
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2, 3, 5, 19, 47, 67, 73, 97, 139, 163, 211, 263, 281, 307, 379, 401, 433, 457, 479, 499, 503, 523, 569, 571, 641, 647, 719, 739, 811, 859, 883, 1187, 1193, 1259, 1289, 1409, 1423, 1427, 1499, 1571, 1619, 1637, 1663, 1787, 1879, 1901, 1907, 1951, 1999, 2089
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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lst={}; Do[p=Prime[n]; If[PrimeQ[Round[p*Catalan]], AppendTo[lst, p]], {n, 10^3}]; lst
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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