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A207960 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 1 0 0 vertically.

%I A207960 #7 Jul 22 2025 21:03:49
%S A207960 2,4,4,6,16,6,9,36,36,9,13,81,102,81,14,19,169,281,297,196,22,28,361,
%T A207960 699,989,932,484,35,41,784,1799,3080,3923,2974,1225,56,60,1681,4706,
%U A207960 9994,15839,15921,9723,3136,90,88,3600,12161,32358,66089,84013,67007,32164
%N A207960 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 1 0 0 vertically.
%C A207960 Table starts
%C A207960 ..2....4.....6......9......13.......19........28.........41..........60
%C A207960 ..4...16....36.....81.....169......361.......784.......1681........3600
%C A207960 ..6...36...102....281.....699.....1799......4706......12161.......31356
%C A207960 ..9...81...297....989....3080.....9994.....32358.....104176......335940
%C A207960 .14..196...932...3923...15839....66089....274310....1137227.....4717144
%C A207960 .22..484..2974..15921...84013...454223...2439422...13111617....70473286
%C A207960 .35.1225..9723..67007..463482..3256420..22743106..159145878..1113110358
%C A207960 .56.3136.32164.286299.2593815.23710041.215653086.1965912435.17907299730
%H A207960 R. H. Hardin, <a href="/A207960/b207960.txt">Table of n, a(n) for n = 1..576</a>
%e A207960 Some solutions for n=4 k=3
%e A207960 ..0..1..1....1..0..0....1..1..0....0..1..1....1..1..0....1..0..0....0..0..1
%e A207960 ..0..1..1....0..1..1....0..0..1....1..1..0....0..0..1....0..1..0....0..0..1
%e A207960 ..0..1..1....1..0..0....1..1..1....1..1..1....1..1..1....1..0..0....0..0..1
%e A207960 ..0..0..1....0..1..1....1..0..0....1..0..0....0..1..1....1..1..0....0..0..1
%Y A207960 Column 1 is A001611(n+2)
%Y A207960 Column 2 is A207436
%Y A207960 Column 3 is A207495
%Y A207960 Row 1 is A000930(n+3)
%Y A207960 Row 2 is A207170
%K A207960 nonn,tabl
%O A207960 1,1
%A A207960 _R. H. Hardin_ Feb 21 2012