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A208698 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 1 and 1 0 0 horizontally and 0 1 0 and 1 0 1 vertically 9

%I #5 Mar 31 2012 12:37:24

%S 2,4,4,6,16,6,9,36,36,10,14,81,98,100,16,22,196,271,358,256,26,35,484,

%T 844,1309,1152,676,42,56,1225,2706,5524,5371,3910,1764,68,90,3136,

%U 8977,24086,30160,23637,12994,4624,110,145,8100,30168,109599,177488,177872

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

%C Table starts

%C ..2....4.....6......9......14.......22.........35..........56...........90

%C ..4...16....36.....81.....196......484.......1225........3136.........8100

%C ..6...36....98....271.....844.....2706.......8977.......30168.......102384

%C .10..100...358...1309....5524....24086.....109599......506870......2376964

%C .16..256..1152...5371...30160...177488....1103081.....6990922.....45002090

%C .26..676..3910..23637..177872..1415508...12014735...104356568....923279444

%C .42.1764.12994.101069.1016258.10934750..126827983..1510509752..18362140414

%C .68.4624.43596.438103.5893862.85697362.1356513169.22125222702.369223577680

%H R. H. Hardin, <a href="/A208698/b208698.txt">Table of n, a(n) for n = 1..418</a>

%e Some solutions for n=4 k=3

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

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

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

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

%Y Column 1 is A006355(n+2)

%Y Column 2 is A206981

%Y Column 3 is A207462

%Y Column 4 is A207914

%Y Row 1 is A001611(n+2)

%Y Row 2 is A207436

%Y Row 3 is A207939

%K nonn,tabl

%O 1,1

%A _R. H. Hardin_ Mar 01 2012

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Last modified April 25 11:16 EDT 2024. Contains 371967 sequences. (Running on oeis4.)