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 A152512 #6 May 12 2020 16:26:39
%S A152512 0,1,51408,331072352,1080698915350,2691500727775616,
%T A152512 5953257961411738328,12474940206857421730672,
%U A152512 25498614004537897031551640,51527434528518884637847012176,103587934174554666918594336695328,207763415020909344351469183584249792
%N A152512 1/6 of the number of permutations of 5 indistinguishable copies of 1..n with exactly 5 local maxima.
%H A152512 Andrew Howroyd, <a href="/A152512/b152512.txt">Table of n, a(n) for n = 1..200</a>
%o A152512 (PARI) \\ PeaksBySig defined in A334774.
%o A152512 a(n) = {PeaksBySig(vector(n,i,5), [4])[1]/6} \\ _Andrew Howroyd_, May 12 2020
%Y A152512 Cf. A152509, A334774.
%K A152512 nonn
%O A152512 1,3
%A A152512 _R. H. Hardin_, Dec 06 2008
%E A152512 Terms a(7) and beyond from _Andrew Howroyd_, May 12 2020