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Number of (n+5)X11 X 11 0..1 matrices with each 6X6 6 X 6 subblock idempotent.

Column 6 of A224577.

Empirical: a(n) = 3*a(n-1) -3*a(n-2) +a(n-3) +2*a(n-6) -5*a(n-7) +4*a(n-8) -a(n-9) -a(n-12) +2*a(n-13) -a(n-14) , for n>18.

Some solutions for n=2:

R. H. Hardin , Apr 10 2013

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R. H. Hardin, <a href="/A224575/b224575.txt">Table of n, a(n) for n = 1..210</a>

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Number of (n+5)X11 0..1 matrices with each 6X6 subblock idempotent

25769, 7386, 7884, 8714, 9480, 10086, 10561, 12373, 15413, 19404, 24072, 29230, 34734, 41919, 52000, 65945, 84434, 107959, 136853, 172795, 218668, 278353, 356397, 457838, 588032, 754025, 965735, 1236991, 1586155, 2036626, 2617144, 3363506

1,1

Column 6 of A224577

Empirical: a(n) = 3*a(n-1) -3*a(n-2) +a(n-3) +2*a(n-6) -5*a(n-7) +4*a(n-8) -a(n-9) -a(n-12) +2*a(n-13) -a(n-14) for n>18

Some solutions for n=2

..1..1..1..1..1..0..0..0..0..0..0....0..1..0..0..0..0..0..0..0..0..0

..0..0..0..0..0..0..0..0..0..0..0....0..1..0..0..0..0..0..0..0..0..0

..0..0..0..0..0..0..0..0..0..0..1....0..1..0..0..0..0..0..0..0..0..1

..0..0..0..0..0..0..0..0..0..0..0....0..1..0..0..0..0..0..0..0..0..1

..0..0..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0..0..1

..0..0..0..0..0..0..0..0..0..0..1....0..0..0..0..0..0..0..0..0..0..1

..0..0..0..0..0..0..0..0..0..0..1....0..0..0..0..0..0..0..0..0..0..1

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R. H. Hardin Apr 10 2013

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