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%I #3 Apr 13 2013 07:36:53
%S 145121216,10906923,6162817,4750292,4617228,4971859,5047936,5029695,
%T 5708639,7589727,11387955,17128394,24395022,33632312,44378240,
%U 56580772,72151138,94546333,128344682,179174727,253082925
%N Number of (n+6)X7 0..2 matrices with each 7X7 subblock idempotent
%C Column 1 of A224642
%e Some solutions for n=2
%e ..0..0..0..0..2..0..0....0..0..0..0..2..2..0....0..0..0..0..0..0..0
%e ..0..0..0..0..1..0..1....0..0..0..0..0..0..0....0..0..0..0..0..0..0
%e ..0..0..0..0..0..0..2....0..0..0..0..0..0..0....0..0..0..0..0..0..0
%e ..0..0..0..0..1..0..2....0..0..0..0..0..0..0....0..0..0..0..0..0..0
%e ..0..0..0..0..1..0..0....0..0..0..0..0..0..0....0..0..0..0..0..0..0
%e ..0..0..0..0..1..0..0....0..0..0..0..1..1..0....1..0..2..1..1..1..0
%e ..0..0..0..0..0..0..1....0..0..0..0..0..0..0....0..0..0..0..0..0..0
%e ..0..0..0..0..0..0..1....2..1..2..2..0..2..1....0..1..0..1..0..2..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Apr 13 2013
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