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%I #6 Nov 10 2015 11:08:25
%S 16,375,7056,147968,2944656,57950000,1150295056,22732293168,
%T 450192689296,8919674478000,176663546922256,3499639051057968,
%U 69320547774657936,1373070214770126000,27197546663936944656,538720520835026168368
%N Number of (n+1)X(4+1) arrays of permutations of 0..n*5+4 with each element having index change +-(.,.) 0,0 1,-1 or 2,2.
%C Column 4 of A264190.
%H R. H. Hardin, <a href="/A264186/b264186.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = 15*a(n-1) +76*a(n-2) +304*a(n-3) -4816*a(n-4) +95344*a(n-5) +477888*a(n-6) +1911552*a(n-7) +9190400*a(n-8) +7421952*a(n-9) +4980736*a(n-10) +19922944*a(n-11) +96468992*a(n-12) +67108864*a(n-13)
%e Some solutions for n=4
%e ..0..1..2..3..4....0..5..6..3..8....0.13.14..3..8....0.13..2..3..4
%e .17.18.19..8..9....1..2..7..4..9....1..2..7..4..9....5..6..7..8..9
%e .10.11.12.13.14...10.15.12.13.14....6.11.12.17.18...22.15.12..1.18
%e .15.20..5..6..7...11.16.21.22.19...15.20..5.22.23...11.16.17.14.19
%e .16.21.22.23.24...20.17.18.23.24...16.21.10.19.24...20.21.10.23.24
%Y Cf. A264190.
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 06 2015