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A224594 Number of (n+7)X12 0..1 matrices with each 8X8 subblock idempotent 1
891884, 107496, 99428, 108764, 116744, 122713, 126820, 129646, 131588, 150819, 187014, 236085, 293902, 357451, 424560, 494058, 565037, 654785, 780204, 954187, 1185430, 1479852, 1840901, 2270907, 2771411, 3361205, 4075790, 4963927, 6082850 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A224597

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..63

FORMULA

Empirical: a(n) = 3*a(n-1) -4*a(n-2) +4*a(n-3) -4*a(n-4) +4*a(n-5) -3*a(n-6) +a(n-7) +2*a(n-8) -5*a(n-9) +6*a(n-10) -6*a(n-11) +6*a(n-12) -6*a(n-13) +4*a(n-14) -a(n-15) -a(n-16) +2*a(n-17) -2*a(n-18) +2*a(n-19) -2*a(n-20) +2*a(n-21) -a(n-22) for n>28

EXAMPLE

Some solutions for n=3

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

..0..0..0..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0..0..0..0

..0..0..0..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0..0..0..0

..0..0..0..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0..0..0..0

..0..0..0..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0..0..0..0

..0..0..0..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0..0..0..0

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

..0..0..0..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0..0..0..0

CROSSREFS

Sequence in context: A250571 A092016 A269219 * A105379 A186792 A032429

Adjacent sequences:  A224591 A224592 A224593 * A224595 A224596 A224597

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 11 2013

STATUS

approved

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Last modified July 17 02:56 EDT 2019. Contains 325092 sequences. (Running on oeis4.)