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 A285656 #4 Apr 24 2017 00:14:39 %S A285656 1,3,1486,5,352,7,342,2022,1488,354,336,9,334,23,59,2024,338,11,344, %T A285656 356,47,15,340,13,1464,19,1490,25,346,61,348,2026,41,17,109,1492,350, %U A285656 21,39,358,414,27,416,330,450,360,418,1494,420,384,43,332,422,1496,101 %N A285656 Inverse permutation to A285655. %H A285656 Rémy Sigrist, <a href="/A285656/b285656.txt">Table of n, a(n) for n = 1..10000</a> %H A285656 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %e A285656 A285655(1) = 1, hence a(1) = 1. %e A285656 A285655(2) = 30030, hence a(30030) = 2. %e A285656 A285655(3) = 2, hence a(2) = 3. %e A285656 A285655(4) = 15015, hence a(15015) = 4. %e A285656 A285655(5) = 4, hence a(4) = 5. %e A285656 A285655(6) = 19635, hence a(19635) = 6. %e A285656 A285655(7) = 6, hence a(6) = 7. %e A285656 A285655(8) = 5005, hence a(5005) = 8. %e A285656 A285655(9) = 12, hence a(12) = 9. %Y A285656 Cf. A285655. %K A285656 nonn %O A285656 1,2 %A A285656 _Rémy Sigrist_, Apr 23 2017