cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A329102 Numbers k such that both k^2 + 3 and 2^k + 3 are primes.

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%I A329102 #15 Feb 16 2024 15:07:29
%S A329102 2,4,28,784
%N A329102 Numbers k such that both k^2 + 3 and 2^k + 3 are primes.
%C A329102 Intersection of A057732 and A049422.
%C A329102 a(5) > 20000. - _Tyler NeSmith_, May 15 2021
%C A329102 a(5) > 2205444, using A057732. - _Michael S. Branicky_, Feb 16 2024
%Y A329102 Cf. A000040, A057732, A049422, A329103.
%K A329102 nonn,hard,more
%O A329102 1,1
%A A329102 _Alex Ratushnyak_, Nov 04 2019