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 A244387 #9 Sep 08 2022 08:46:08 %S A244387 102,200,570,1368,1428,1674,1796,1980,2148,2426,2534,2600,2990,3006, %T A244387 3138,3188,3696,4116,4122,4710,4808,5078,6072,6158,6486,6732,6762, %U A244387 6956,7080,7146,7190,7328,7866,7976,8256,8664,9494,9758,9780,9890 %N A244387 Numbers k such that 1 + k + k^3 + k^5 + k^7 + k^9 + ... + k^45 is prime. %H A244387 Vincenzo Librandi, <a href="/A244387/b244387.txt">Table of n, a(n) for n = 1..490</a> %t A244387 Select[Range[10000], PrimeQ[Total[#^Range[1, 45, 2]] + 1]&] %o A244387 (Magma) [n: n in [0..10000] | IsPrime(s) where s is 1+&+[n^i: i in [1..45 by 2]]]; %Y A244387 Cf. similar sequences listed in A244376. %K A244387 nonn,easy %O A244387 1,1 %A A244387 _Vincenzo Librandi_, Jun 27 2014