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 A151654 #8 Jun 11 2023 12:06:50 %S A151654 0,36,4050864,10490842656,10255094095176,6781036059518868, %T A151654 3744571580295610680,1893138497272086513120,915533370856221482817936, %U A151654 432873619819347725868506292,202329942824085294375700974144,94022530911932061378520715448384,43564340849890810938403538912669496 %N A151654 Number of permutations of 6 indistinguishable copies of 1..n with exactly 5 adjacent element pairs in decreasing order. %H A151654 Andrew Howroyd, <a href="/A151654/b151654.txt">Table of n, a(n) for n = 1..200</a> %H A151654 <a href="/index/Rec#order_21">Index entries for linear recurrences with constant coefficients</a>, signature (1287, -665085, 185049017, -31190554872, 3393504308298, -247577707116706, 12409594294661298, -434237280286221153, 10713236096664371179, -187333202983969901817, 2326256453936078033349, -20501775776012012073494, 127726669837663368160500, -557839835867479081817208, 1687107017150888313396640, -3485094134205352534911360, 4853917967549146311707136, -4463498883906046248413184, 2592626135894429309853696, -861342430920194620293120, 124750055827809622425600). %Y A151654 Column k=5 of A237252. %K A151654 nonn %O A151654 1,2 %A A151654 _R. H. Hardin_, May 29 2009 %E A151654 Terms a(7) and beyond from _Andrew Howroyd_, May 06 2020