A034938 Primes p such that (p-3)/2 is a prime of the form 6k-1.

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

Offset

1,1

Comments

Related to hyperperfect numbers of a certain form (form 1, theorem 1 in "A Study of Hyperperfect Numbers").

Links

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.

Mathematica

Select[Prime[Range[500]], Mod[(#-3)/2, 6]==5&&PrimeQ[(#-3)/2]&] (* Harvey P. Dale, Jul 27 2019 *)

Crossrefs

Cf. A038536 and A034937.

Sequence in context: A141122 A068228 A031339 * A139530 A138368 A118071

Adjacent sequences: A034935 A034936 A034937 * A034939 A034940 A034941

Keyword

nonn,easy

Author

Jud McCranie

Extensions

Definition corrected by Jud McCranie, Jul 26 2019

Status

approved