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 A082494 #8 Aug 10 2022 09:56:15 %S A082494 1,2,1,4,3,2,5,8,1,6,9,8,11,10,7,16,15,8,17,4,13,18,21,8,18,22,1,12, %T A082494 27,26,29,32,25,30,17,8,35,34,31,24,39,20,41,28,28,42,45,32,19,26,43, %U A082494 36,51,26,12,24,49,54,57,44,59,58,55,64,33,2,65,52,61,26,69,8,71,70,7,60,59 %N A082494 a(n) = n - (2^n (mod n)). %H A082494 Alois P. Heinz, <a href="/A082494/b082494.txt">Table of n, a(n) for n = 1..10000</a> %p A082494 a:= n-> n-(2&^n mod n): %p A082494 seq(a(n), n=1..100); # _Alois P. Heinz_, Apr 08 2015 %Y A082494 Cf. A015910, A082493, A215747. %K A082494 easy,nonn,look %O A082494 1,2 %A A082494 Anonymous, Apr 28 2003