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A290243
Prime numbers of the form 3^k - 10.
1
17, 71, 233, 719, 6551, 129140153, 387420479, 10460353193, 31381059599, 150094635296999111, 1350851717672992079, 36472996377170786393, 58149737003040059690390159, 523347633027360537213511511, 443426488243037769948249630619149892793
OFFSET
1,1
LINKS
F. Firoozbakht, M. F. Hasler, Variations on Euclid's formula for Perfect Numbers,JIS 13 (2010) #10.3.1.
Henri & Renaud Lifchitz, PRP Records
OpenPFGW Project, Primality Tester
FORMULA
a(n) = 3^A217347(n) - 10. - Elmo R. Oliveira, Nov 09 2023
MATHEMATICA
Select[Table[3^k - 10], {k, 3, 100}], PrimeQ[#] &]
PROG
(PARI) lista(nn) = for(n=3, nn, if(isprime(p=3^n-10), print1(p", "))); \\ Altug Alkan, Jul 24 2017
CROSSREFS
Cf. A000040, A217347 (corresponding k's).
Sequence in context: A157910 A141959 A347334 * A320895 A288748 A069496
KEYWORD
nonn
AUTHOR
Robert Price, Jul 24 2017
STATUS
approved