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 A214277 #9 Jan 03 2019 14:29:41 %S A214277 0,2,1,8,12,23,56,100,196,380,729,1355,2562,4777,8834,16388,30110, %T A214277 55297,101217,184784,336450,611563,1109435,2008818,3632205,6557010, %U A214277 11821718,21286582,38285132,68782625,123450341,221358100,396561946,709850307,1269638737 %N A214277 Number of compositions of n where the difference between largest and smallest parts equals 8 and adjacent parts are unequal. %H A214277 Alois P. Heinz, <a href="/A214277/b214277.txt">Table of n, a(n) for n = 9..2000</a> %e A214277 a(10) = 2: [9,1], [1,9]. %e A214277 a(11) = 1: [1,9,1]. %e A214277 a(12) = 8: [9,2,1], [9,1,2], [2,9,1], [2,10], [2,1,9], [10,2], [1,9,2], [1,2,9]. %e A214277 a(13) = 12: [9,3,1], [9,1,3], [9,1,2,1], [3,9,1], [3,1,9], [2,1,9,1], [1,9,3], [1,9,2,1], [1,9,1,2], [1,3,9], [1,2,9,1], [1,2,1,9]. %Y A214277 Column k=8 of A214269. %K A214277 nonn %O A214277 9,2 %A A214277 _Alois P. Heinz_, Jul 09 2012