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%I #4 Apr 12 2013 08:51:58
%S 2236302,396769,311767,338635,396573,443744,449369,544003,692711,
%T 980320,1411379,2030529,2793530,3794286,5011337,6643245,8896802,
%U 12138019,16712716,23206612,32113928,44254185,60652523,82906840,113205446
%N Number of (n+5)X6 0..2 matrices with each 6X6 subblock idempotent
%C Column 1 of A224636
%H R. H. Hardin, <a href="/A224629/b224629.txt">Table of n, a(n) for n = 1..60</a>
%F Empirical: a(n) = 2*a(n-1) -2*a(n-2) +2*a(n-3) -a(n-4) +2*a(n-6) -3*a(n-7) +4*a(n-8) -4*a(n-9) +3*a(n-10) -2*a(n-11) -2*a(n-14) +2*a(n-15) -2*a(n-16) +2*a(n-17) -a(n-18) +a(n-19) for n>30
%e Some solutions for n=2
%e ..1..1..0..0..1..2....1..0..0..0..0..0....1..1..2..0..2..0....1..0..2..0..0..0
%e ..0..0..0..0..0..0....1..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0
%e ..0..0..1..0..0..0....1..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0
%e ..0..0..1..0..0..0....0..0..0..0..2..0....0..0..0..1..1..0....0..1..1..1..1..0
%e ..0..0..0..0..0..0....0..0..0..0..1..0....0..0..0..0..0..0....0..0..0..0..0..0
%e ..0..0..0..0..0..0....0..0..0..0..1..0....0..0..0..1..1..0....0..0..0..0..0..0
%e ..0..0..0..1..0..1....0..0..0..0..2..0....0..0..0..2..0..1....0..1..0..2..0..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Apr 12 2013
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