%I
%S 1,2,86,10010,1543862,276285002,54331653686,11408205434138,
%T 2514046004253110,574996024253854586,135442141147145037086,
%U 32677132473420748546466,8041851882854648557516118,2012484136612620102100796090,510873291048466091968494930086
%N Number of permutations of n copies of 1..6 with all adjacent differences <= 1 in absolute value.
%H Andrew Howroyd, <a href="/A177318/b177318.txt">Table of n, a(n) for n = 0..200</a>
%Y Row n=6 of A331562.
%K nonn
%O 0,2
%A _R. H. Hardin_, May 06 2010
%E a(0)=1 prepended by _Alois P. Heinz_, Jan 20 2020
%E a(11)a(12) from _Alois P. Heinz_, Jan 22 2020
%E Terms a(13) and beyond from _Andrew Howroyd_, May 15 2020
