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 A285488 #11 Apr 21 2017 12:50:00 %S A285488 1,3,165,5,31,7,25,643,167,33,23,9,27,17,59,645,29,11,151,35,53,13, %T A285488 153,169,161,15,595,19,155,37,157,647,51,129,42,171,159,21,55,135,163, %U A285488 45,213,131,61,137,215,173,217,139,57,133,219,175,44,143,63,141,221 %N A285488 Inverse permutation to A285487. %H A285488 Rémy Sigrist, <a href="/A285488/b285488.txt">Table of n, a(n) for n = 1..30000</a> %H A285488 Rémy Sigrist, <a href="/A285488/a285488.txt">C++ program for A285488</a> %H A285488 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %e A285488 A285487(1) = 1, hence a(1) = 1. %e A285488 A285487(2) = 2310, hence a(2310) = 2. %e A285488 A285487(3) = 2, hence a(2) = 3. %e A285488 A285487(4) = 1155, hence a(1155) = 4. %e A285488 A285487(5) = 4, hence a(4) = 5. %e A285488 A285487(6) = 1365, hence a(1365) = 6. %e A285488 A285487(7) = 6, hence a(6) = 7. %e A285488 A285487(8) = 385, hence a(385) = 8. %e A285488 A285487(9) = 12, hence a(12) = 9. %Y A285488 Cf. A285487. %K A285488 nonn %O A285488 1,2 %A A285488 _Rémy Sigrist_, Apr 19 2017