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A202795
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T(n,k)=Number of nXk binary arrays with every one adjacent to another one horizontally, diagonally, antidiagonally or vertically
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8
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1, 2, 2, 4, 12, 4, 7, 50, 50, 7, 12, 188, 398, 188, 12, 21, 724, 3018, 3018, 724, 21, 37, 2820, 23436, 45519, 23436, 2820, 37, 65, 10960, 182430, 702846, 702846, 182430, 10960, 65, 114, 42544, 1417772, 10892633, 21649928, 10892633, 1417772, 42544, 114
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OFFSET
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1,2
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COMMENTS
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Table starts
...1......2.........4............7..............12.................21
...2.....12........50..........188.............724...............2820
...4.....50.......398.........3018...........23436.............182430
...7....188......3018........45519..........702846...........10892633
..12....724.....23436.......702846........21649928..........669872090
..21...2820....182430.....10892633.......669872090........41382940317
..37..10960...1417772....168585867.....20696263392......2552520578945
..65..42544..11017196...2608652667....639259508770....157398925950921
.114.165176..85621362..40368680378..19746821708510...9706685199080140
.200.641376.665418194.624709738658.609991818060458.598614098605286252
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LINKS
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R. H. Hardin, Table of n, a(n) for n = 1..480
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EXAMPLE
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Some solutions for n=5 k=3
..0..1..1....0..1..0....0..1..0....1..0..1....1..0..1....0..1..0....0..1..1
..0..0..0....1..1..1....1..0..1....1..1..0....1..0..1....1..0..0....0..1..1
..0..1..1....0..1..1....1..1..0....0..0..0....0..1..0....0..1..0....0..1..1
..0..1..1....1..0..1....0..1..0....1..0..0....0..1..1....1..1..1....1..0..0
..0..1..1....1..1..0....1..0..1....1..1..0....1..0..0....1..0..1....1..0..0
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CROSSREFS
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Column 1 is A005251(n+2)
Sequence in context: A115011 A296688 A219569 * A256890 A110476 A330762
Adjacent sequences: A202792 A202793 A202794 * A202796 A202797 A202798
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KEYWORD
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nonn,tabl
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AUTHOR
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R. H. Hardin Dec 24 2011
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STATUS
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approved
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