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%I #6 Dec 27 2023 00:21:04
%S 861932,115146,108474,118423,126820,132787,136874,139746,141832,
%T 161627,198640,248635,307476,372031,440236,510818,582955,674367,
%U 802202,979519,1215206,1514964,1882439,2319993,2829145,3429181,4156454,5060523,6199800
%N Number of (n+7) X 14 0..1 matrices with each 8 X 8 subblock idempotent.
%C Column 7 of A224597.
%H R. H. Hardin, <a href="/A224596/b224596.txt">Table of n, a(n) for n = 1..34</a>
%e Some solutions for n=3
%e ..1..0..0..0..0..0..0..0..0..0..0..0..0..0
%e ..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..0..0..0..1
%e ..0..0..0..0..0..0..0..0..0..0..0..0..0..0
%e ..0..0..0..0..0..0..0..0..0..0..0..0..0..0
%e ..0..0..0..0..0..0..0..0..0..0..0..0..0..0
%e ..0..0..0..0..0..0..0..0..0..0..0..0..0..0
%e ..0..0..0..0..0..0..0..0..0..0..0..0..0..1
%e ..0..0..0..0..0..0..0..0..0..0..0..0..0..1
%e ..0..0..0..0..0..0..0..0..0..0..0..0..0..1
%Y Cf. A224597.
%K nonn
%O 1,1
%A _R. H. Hardin_, Apr 11 2013
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