%I
%S 1,2,48,2288,135040,8956752,640160976,48203722464,3772321496064,
%T 304100156874800,25098440923318048,2111488538062121088,
%U 180477438192133215952,15633823902235680250592,1369837117884520736235840,121216041295339359662340288,10819157637786569144853012480
%N Number of permutations of n copies of 1..5 with all adjacent differences <= 1 in absolute value.
%H Alois P. Heinz, <a href="/A177317/b177317.txt">Table of n, a(n) for n = 0..28</a> (terms n=1..16 from R. H. Hardin)
%Y Row n=5 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
