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A184376
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T(n,k)=1/3 the number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock having at least two equal elements connected horizontally or vertically
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10
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21, 153, 153, 1107, 2755, 1107, 8019, 49235, 49235, 8019, 58077, 880781, 2167173, 880781, 58077, 420633, 15754461, 95528423, 95528423, 15754461, 420633, 3046491, 281803871, 4210059673, 10378244309, 4210059673, 281803871, 3046491, 22064643
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OFFSET
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1,1
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COMMENTS
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Table starts
.........21............153...............1107....................8019
........153...........2755..............49235..................880781
.......1107..........49235............2167173................95528423
.......8019.........880781...........95528423.............10378244309
......58077.......15754461.........4210059673...........1127256514575
.....420633......281803871.......185547841629.........122443114867993
....3046491.....5040682279......8177524177277.......13299774554091575
...22064643....90163722073....360402692568245.....1444622701339019869
..159806277..1612776998193..15883791500540967...156915034606615850427
.1157419449.28848073268443.700035935394350709.17044123945719790186817
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LINKS
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EXAMPLE
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Some solutions for 4X3 with a(1,1)=0
..0..2..0....0..0..2....0..2..1....0..2..1....0..1..0....0..1..2....0..1..0
..0..0..0....0..0..2....0..0..1....0..0..1....2..1..0....0..1..0....2..2..2
..2..0..1....2..2..2....1..2..1....2..2..1....0..1..1....0..2..2....0..1..2
..2..0..2....1..0..0....1..0..1....2..2..1....1..1..2....1..2..0....1..1..0
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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