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 A177656 #10 Aug 08 2018 18:33:02 %S A177656 1,1,70,34650,63063000,305540235000,3244063941457921, %T A177656 66318107269696031401,2379613992603610298990440, %U A177656 139801056431706089952638689800,12738104011291233355807195325583000,1723542569871737348415590682638868511200 %N A177656 Number of permutations of 4 copies of 1..n avoiding adjacent step pattern up, up, up, up, up. %H A177656 Mingjia Yang, Doron Zeilberger, <a href="https://arxiv.org/abs/1805.06077">Increasing Consecutive Patterns in Words</a>, arXiv:1805.06077 [math.CO], 2018. %Y A177656 Cf. A014608. %K A177656 nonn %O A177656 0,3 %A A177656 _R. H. Hardin_, May 10 2010 %E A177656 a(9)-a(11) from _Alois P. Heinz_, Aug 08 2018