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A185521 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock singular 10

%I #5 Mar 31 2012 12:36:02

%S 31,143,143,593,1489,593,2553,12361,12361,2553,10847,115979,154561,

%T 115979,10847,46303,1058503,2490449,2490449,1058503,46303,197329,

%U 9856209,35659489,80761059,35659489,9856209,197329,841449,91539073,541370505

%N T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock singular

%C Table starts

%C .......31.........143............593..............2553................10847

%C ......143........1489..........12361............115979..............1058503

%C ......593.......12361.........154561...........2490449.............35659489

%C .....2553......115979........2490449..........80761059...........2183297449

%C ....10847.....1058503.......35659489........2183297449..........96865190255

%C ....46303.....9856209......541370505.......65652458491........5157904182519

%C ...197329....91539073.....7998109489.....1894624012417......249246507105681

%C ...841449...853020411...119752453041....56140705014995....12721664424927033

%C ..3587359..7948563615..1781802607473..1649002255383641...630667351622299519

%C .15295151.74110312433.26592505725449.48754926946880491.31779395697846344999

%H R. H. Hardin, <a href="/A185521/b185521.txt">Table of n, a(n) for n = 1..199</a>

%e Some solutions for 4X3

%e ..2..1..0....0..2..1....2..0..1....0..0..0....2..0..2....1..0..1....2..0..2

%e ..0..0..0....0..0..0....1..0..0....0..0..0....0..0..2....0..0..1....2..0..0

%e ..2..0..1....0..0..0....1..0..0....1..0..2....0..0..1....1..0..2....0..0..1

%e ..1..0..0....0..0..1....1..0..0....0..0..2....1..0..0....1..0..0....0..0..0

%K nonn,tabl

%O 1,1

%A _R. H. Hardin_ Jan 29 2011

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Last modified March 28 22:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)