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.
%I A359518 #15 Oct 03 2024 03:53:44
%S A359518 1,2,3,5,10,17,21,28,38,50,86,88,100,375,408,630,646,1241,1860,4359,
%T A359518 15444,17916,74901,91968,101121
%N A359518 Integers k such that A110299(k) is prime.
%C A359518 Integers k such that Sum_{i=0..k-1} 2^i*prime(k-i) is prime.
%e A359518 For these k, A110299(k) is 2, 7, 19, 101, 3727, 481577, 7706203, 986404613, ... all prime.
%o A359518 (PARI) isok(k) = isprime(fromdigits(primes(k), 2));
%Y A359518 Cf. A110299.
%K A359518 nonn,more
%O A359518 1,2
%A A359518 _Michel Marcus_, Jan 04 2023
%E A359518 a(20)-a(22) from _Pontus von Brömssen_, Jan 04 2023
%E A359518 a(23)-a(25) from _Michael S. Branicky_, Oct 02 2024