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A224629
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Number of (n+5)X6 0..2 matrices with each 6X6 subblock idempotent
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1
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2236302, 396769, 311767, 338635, 396573, 443744, 449369, 544003, 692711, 980320, 1411379, 2030529, 2793530, 3794286, 5011337, 6643245, 8896802, 12138019, 16712716, 23206612, 32113928, 44254185, 60652523, 82906840, 113205446
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OFFSET
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1,1
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COMMENTS
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LINKS
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FORMULA
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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
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EXAMPLE
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Some solutions for n=2
..1..1..0..0..1..2....1..0..0..0..0..0....1..1..2..0..2..0....1..0..2..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..0..0....1..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..2..0....0..0..0..1..1..0....0..1..1..1..1..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....0..0..0..0..1..0....0..0..0..1..1..0....0..0..0..0..0..0
..0..0..0..1..0..1....0..0..0..0..2..0....0..0..0..2..0..1....0..1..0..2..0..1
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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