%I #6 Nov 10 2015 10:47:58
%S 16,377,12100,239580,5645376,130697424,3057071776,70815364224,
%T 1640245587376,37991496430624,879962725844576,20381782810954224,
%U 472084850498355776,10934475563176382624,253265394378463623376
%N Number of (4+1)X(n+1) arrays of permutations of 0..n*5+4 with each element having index change +-(.,.) 0,0 0,1 or 1,2.
%C Row 4 of A264071.
%H R. H. Hardin, <a href="/A264073/b264073.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = 24*a(n-1) -19*a(n-2) -11*a(n-3) +36*a(n-4) +3*a(n-5) for n>9
%e Some solutions for n=3
%e ..5..1..7..3....0..1..7..3....0..6..2..3....5..6..7..3....0..1..7..3
%e ..4..0..6..2...10..5.11..2....4.11..1..7....4..0..1..2....4.10..6..2
%e .13..9.15.11....8.15..4..6...14..9.15..5....8..9.10.11...14..9..5.11
%e .17..8.14.10...17.18.14..9...17.18..8.10...18.13.14.15...18..8.19.15
%e .16.12.18.19...16.12.13.19...16.12.13.19...16.17.12.19...16.17.12.13
%Y Cf. A264071.
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 02 2015
|