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 A278982 #16 May 13 2021 13:46:06 %S A278982 1,12,123,213,1234,1324,2134,2314,3124,12345,12435,13245,13425,14235, %T A278982 21345,21435,23145,23415,24135,31245,31425,32415,34125,41235,41325, %U A278982 123456,123546,124356,124536,125346,132456,132546,134256,134526,135246,142356,142536 %N A278982 List of Andre permutations of the first kind. %C A278982 The permutations are encoded in decimal, hence the keyword base. - _Rémy Sigrist_, May 13 2021 %H A278982 Rémy Sigrist, <a href="/A278982/b278982.txt">Table of n, a(n) for n = 1..9679</a> %H A278982 Dominique Foata and Guo-Niu Han, <a href="http://arxiv.org/abs/1601.04371">André Permutation Calculus; a Twin Seidel Matrix Sequence</a>, arXiv:1601.04371 [math.CO], 2016. %H A278982 Rémy Sigrist, <a href="/A278982/a278982_1.gp.txt">PARI program for A278982</a> %o A278982 (PARI) See Links section. %Y A278982 Cf. A000111, A008282, A278983. %K A278982 nonn,base %O A278982 1,2 %A A278982 _N. J. A. Sloane_, Dec 03 2016 %E A278982 More terms from _Rémy Sigrist_, May 13 2021