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A290005 Primes of the form 3^k + 32. 1

%I #14 Nov 12 2023 15:15:09

%S 41,59,113,761,94143178859,282429536513,1350851717672992121,

%T 1769643454279976222562683176742209046547931058497932902345838739841697520771313,

%U 11610630703530923996233764322605633554400975674804937772291047972101377433780374673

%N Primes of the form 3^k + 32.

%H Robert Price, <a href="/A290005/b290005.txt">Table of n, a(n) for n = 1..14</a>

%H F. Firoozbakht and M. F. Hasler, <a href="https://cs.uwaterloo.ca/journals/JIS/VOL13/Hasler/hasler2.html">Variations on Euclid's formula for Perfect Numbers</a>, JIS 13 (2010) #10.3.1

%H Henri and Renaud Lifchitz, <a href="http://www.primenumbers.net/prptop">PRP Records</a>

%H OpenPFGW Project, <a href="http://sourceforge.net/projects/openpfgw/">Primality Tester</a>

%F a(n) = 3^A219048(n) + 32. - _Elmo R. Oliveira_, Nov 12 2023

%t Select[Table[3k+32], {k, 0, 100}], PrimeQ[#] &]

%Y Cf. A000040, A219048 (corresponding k's).

%K nonn

%O 1,1

%A _Robert Price_, Sep 03 2017

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Last modified August 14 18:55 EDT 2024. Contains 375166 sequences. (Running on oeis4.)