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A184066 Number of (n+1)X5 binary arrays with rows and columns in nondecreasing order and with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one 1

%I #5 Mar 31 2012 12:35:56

%S 34,73,382,1918,7671,22452,57488,126978,248290,439534,717161,1096422,

%T 1592731,2221230,2997249,3936118,5053167,6363726,7883125,9626694,

%U 11609763,13847662,16355721,19149270,22243639,25654158,29396157,33484966

%N Number of (n+1)X5 binary arrays with rows and columns in nondecreasing order and with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one

%C Column 4 of A184071

%H R. H. Hardin, <a href="/A184066/b184066.txt">Table of n, a(n) for n = 1..200</a>

%e Some solutions for 3X5

%e ..0..0..0..1..1....0..0..0..0..0....0..1..1..1..1....0..0..1..1..1

%e ..0..1..1..1..1....0..1..1..1..1....1..0..0..1..1....0..1..0..1..1

%e ..1..0..0..0..1....1..0..0..0..0....1..1..1..0..1....1..0..1..0..1

%e ...

%e ...1..2..3..4.......1..2..2..2.......2..2..3..4.......1..2..3..4...

%e ...2..2..2..3.......2..2..2..2.......3..2..2..3.......2..2..2..3...

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 09 2011

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Last modified April 18 18:58 EDT 2024. Contains 371781 sequences. (Running on oeis4.)