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A034938
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Primes p such that (p-3)/2 is a prime of the form 6k-1.
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1
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13, 37, 61, 97, 109, 181, 229, 277, 337, 349, 397, 457, 541, 709, 769, 937, 1009, 1021, 1117, 1129, 1201, 1237, 1297, 1321, 1489, 1549, 1597, 1621, 1657, 1777, 1861, 2029, 2221, 2377, 2389, 2437, 2521, 2557, 2617, 2749, 2857, 3001, 3049
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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COMMENTS
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Related to hyperperfect numbers of a certain form (form 1, theorem 1 in "A Study of Hyperperfect Numbers").
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LINKS
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Table of n, a(n) for n=1..43.
J. S. McCranie, A study of hyperperfect numbers, J. Int. Seqs. Vol. 3 (2000) #P00.1.3.
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MATHEMATICA
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Select[Prime[Range[500]], Mod[(#-3)/2, 6]==5&&PrimeQ[(#-3)/2]&] (* Harvey P. Dale, Jul 27 2019 *)
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CROSSREFS
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Cf. A038536 and A034937.
Sequence in context: A141122 A068228 A031339 * A139530 A138368 A118071
Adjacent sequences: A034935 A034936 A034937 * A034939 A034940 A034941
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KEYWORD
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nonn,easy
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AUTHOR
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Jud McCranie
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EXTENSIONS
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Definition corrected by Jud McCranie, Jul 26 2019
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STATUS
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approved
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