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A224592 Number of (n+7)X10 0..1 matrices with each 8X8 subblock idempotent 1
1089765, 100703, 84312, 92168, 99428, 105212, 108474, 111239, 113381, 132097, 166674, 215030, 272096, 334613, 400060, 468605, 538345, 626573, 749112, 920036, 1147232, 1436120, 1789659, 2212564, 2705075, 3284761, 3986140, 4858464, 5957086 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 3 of A224597
LINKS
FORMULA
Empirical: a(n) = 3*a(n-1) -5*a(n-2) +7*a(n-3) -9*a(n-4) +11*a(n-5) -12*a(n-6) +12*a(n-7) -10*a(n-8) +7*a(n-9) -3*a(n-10) -2*a(n-11) +7*a(n-12) -12*a(n-13) +15*a(n-14) -17*a(n-15) +17*a(n-16) -16*a(n-17) +13*a(n-18) -9*a(n-19) +5*a(n-20) -a(n-21) -2*a(n-22) +5*a(n-23) -6*a(n-24) +6*a(n-25) -5*a(n-26) +4*a(n-27) -3*a(n-28) +2*a(n-29) -a(n-30) for n>39
EXAMPLE
Some solutions for n=3
..1..1..1..1..0..1..0..1..0..1....1..1..1..0..0..1..1..0..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..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..0..0..1..1..1....1..1..1..0..0..0..1..1..1..1
CROSSREFS
Sequence in context: A340132 A340405 A258704 * A252119 A109148 A077647
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 11 2013
STATUS
approved

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Last modified June 22 04:48 EDT 2024. Contains 373565 sequences. (Running on oeis4.)