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 A365389 #4 Sep 16 2023 16:03:11 %S A365389 0,1,2,4,3,5,9,7,8,6,27,14,81,10,11,16,243,17,729,13,29,28,2187,23,12, %T A365389 82,26,19,6561,20,19683,25,83,244,18,44,59049,730,245,22,177147,32, %U A365389 531441,31,35,2188,1594323,50,36,15,731,85,4782969,53,30,34,2189,6562,14348907,41,43046721,19684,89,52,84,86,129140163 %N A365389 a(n) = A365390(n) - 1. %H A365389 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %Y A365389 One less than A365390. %Y A365389 Cf. A356867. %Y A365389 Cf. also A156552. %K A365389 nonn %O A365389 1,3 %A A365389 _Antti Karttunen_, Sep 16 2023