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 A045591 #21 Jan 13 2024 10:55:24 %S A045591 1,2,4,5,8,16,25,26,32,55,64,125,128,136,256,275,338,388,512,605,625, %T A045591 1024,1375,2048,2312,3025,3125,3208,4096,4394,6655,6875,8192,15125, %U A045591 15625,16384,28418,30025,31375,32768,32896,33275,34375,36896,37636 %N A045591 Numbers k that divide 6^k + 4^k. %H A045591 G. C. Greubel, <a href="/A045591/b045591.txt">Table of n, a(n) for n = 1..71</a> %t A045591 Select[Range[40000],Divisible[6^#+4^#,#]&] (* _Harvey P. Dale_, Oct 06 2011 *) %o A045591 (Magma) [n: n in [1..40000] | (4^n+6^n) mod n eq 0]; // _G. C. Greubel_, Jan 13 2024 %o A045591 (SageMath) [n for n in (1..40000) if (4^n+6^n)%n==0] # _G. C. Greubel_, Jan 13 2024 %Y A045591 Cf. A074612. %K A045591 nonn %O A045591 1,2 %A A045591 _David W. Wilson_