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A344516
Numbers k such that (2^k-5, 2^k-3) are twin primes.
0
3, 4, 6, 10, 12, 20, 150
OFFSET
1,1
COMMENTS
No more terms <= A050414(66) = 2086750.
LINKS
G. L. Honaker, Jr. and Chris K. Caldwell, Prime Curios! 150.
EXAMPLE
3 is a term since (2^3-5, 2^3-3) = (3, 5) are twin primes.
MATHEMATICA
Select[Range[150], And @@ PrimeQ[2^# - {3, 5}] &]
CROSSREFS
Intersection of A050414 and A059608.
Cf. A001097.
Sequence in context: A249666 A113887 A103000 * A310001 A310002 A240577
KEYWORD
nonn,more,hard
AUTHOR
Amiram Eldar, May 21 2021
STATUS
approved