A207960 - OEIS

%I #5 Mar 31 2012 12:37:20

%S 2,4,4,6,16,6,9,36,36,9,13,81,102,81,14,19,169,281,297,196,22,28,361,

%T 699,989,932,484,35,41,784,1799,3080,3923,2974,1225,56,60,1681,4706,

%U 9994,15839,15921,9723,3136,90,88,3600,12161,32358,66089,84013,67007,32164

%N 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 Table starts

%C ..2....4.....6......9......13.......19........28.........41..........60

%C ..4...16....36.....81.....169......361.......784.......1681........3600

%C ..6...36...102....281.....699.....1799......4706......12161.......31356

%C ..9...81...297....989....3080.....9994.....32358.....104176......335940

%C .14..196...932...3923...15839....66089....274310....1137227.....4717144

%C .22..484..2974..15921...84013...454223...2439422...13111617....70473286

%C .35.1225..9723..67007..463482..3256420..22743106..159145878..1113110358

%C .56.3136.32164.286299.2593815.23710041.215653086.1965912435.17907299730

%H R. H. Hardin, <a href="/A207960/b207960.txt">Table of n, a(n) for n = 1..576</a>

%e Some solutions for n=4 k=3

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

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

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

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

%Y Column 1 is A001611(n+2)

%Y Column 2 is A207436

%Y Column 3 is A207495

%Y Row 1 is A000930(n+3)

%Y Row 2 is A207170

%K nonn,tabl

%O 1,1

%A _R. H. Hardin_ Feb 21 2012