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 A367287 #28 Aug 30 2024 10:17:55 %S A367287 1,2,4,62,80,122,136,658,1918,2998,3404,4042,5678,8378,10438,23530, %T A367287 24610,29090,41650,120818 %N A367287 Numbers k such that k^6*2^k + 1 is a prime. %C A367287 No further terms <= 100000. - _Michael S. Branicky_, Nov 22 2023 %o A367287 (Magma) [k: k in [1..1000] | IsPrime(k^6*2^k + 1)]; %Y A367287 Numbers k such that k^m*2^k + 1 is a prime: 0, 1, 2, 4, 8, 16, .. (m = 0), A005849 (m = 1), A058780 (m = 2), A357612 (m = 3), A366422 (m = 4), A367421 (m = 5), this sequence (m = 6). %Y A367287 Cf. A367478. %K A367287 nonn,more %O A367287 1,2 %A A367287 _Juri-Stepan Gerasimov_, Nov 21 2023 %E A367287 a(16)-a(19) from _Michael S. Branicky_, Nov 21 2023 %E A367287 a(20) from _Michael S. Branicky_, Aug 30 2024