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 A344455 #7 May 21 2021 16:21:55
%S A344455 0,0,1,3,16,90,597,4501,38216,361188,3764145,42904631,531137832,
%T A344455 7098180830,101867469333,1562669432745,25519514490416,442059126085000,
%U A344455 8096324154363009,156327367277971371,3173836404105603040,67593549458478576162,1506808374349969515253,35090063236144812165117
%N A344455 Total number of right-to-left minima in all derangement permutations of [n].
%F A344455 a(n) = Sum_{k=1..n-1} k * A344437(n,k).
%e A344455 a(4) = 16 = 2 + 1 + 2 + 2 + 2 + 1 + 3 + 2 + 1: 2(1)4(3), 234(1), 24(1)(3), 3(1)4(2), 34(1)(2), 342(1), 4(1)(2)(3), 43(1)(2), 432(1).
%Y A344455 Cf. A000166, A344437.
%K A344455 nonn
%O A344455 0,4
%A A344455 _Alois P. Heinz_, May 19 2021