|
%I #5 Mar 31 2012 12:37:00
%S 527076,60873876,7748585676,1012872412476,132923754354276,
%T 17475349695161076,2297197186864332876,302046352349437619676,
%U 39711002724144659521476,5221215352191535968288276
%N Number of (n+1)X5 0..5 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements
%C Column 4 of A203934
%H R. H. Hardin, <a href="/A203930/b203930.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = 91*a(n-1) +7335*a(n-2) -264625*a(n-3) -85500*a(n-4) +10470000*a(n-5) +2475000*a(n-6) -20750000*a(n-7)
%e Some solutions for n=4
%e ..0..3..3..1..5....1..1..4..4..5....5..2..4..2..5....5..5..3..3..4
%e ..4..0..3..3..1....1..5..1..4..4....2..1..2..4..2....1..5..5..3..3
%e ..2..4..0..3..3....1..1..5..1..4....1..5..1..2..4....1..1..5..5..3
%e ..2..2..4..0..3....4..1..1..1..1....4..1..3..1..2....0..1..1..5..5
%e ..4..2..2..4..0....3..4..1..2..1....1..5..1..4..1....4..0..1..1..5
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 08 2012
| 