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A180760 T(n,k)=half the number of nXk binary arrays with each element equal to at least two neighbors 10

%I

%S 0,0,0,0,1,0,0,1,1,0,0,2,1,2,0,0,3,2,2,3,0,0,5,3,9,3,5,0,0,8,7,21,21,

%T 7,8,0,0,13,14,70,86,70,14,13,0,0,21,31,207,410,410,207,31,21,0,0,34,

%U 67,658,1874,2986,1874,658,67,34,0,0,55,148,2059,8840,20205,20205,8840,2059,148

%N T(n,k)=half the number of nXk binary arrays with each element equal to at least two neighbors

%C Table starts

%C .0..0...0....0......0.......0.........0..........0............0.............0

%C .0..1...1....2......3.......5.........8.........13...........21............34

%C .0..1...1....2......3.......7........14.........31...........67...........148

%C .0..2...2....9.....21......70.......207........658.........2059..........6521

%C .0..3...3...21.....86.....410......1874.......8840........41755........197883

%C .0..5...7...70....410....2986.....20205.....141313.......986376.......6925085

%C .0..8..14..207...1874...20205....205020....2141384.....22238670.....232041425

%C .0.13..31..658...8840..141313...2141384...33329847....514990479....7988200496

%C .0.21..67.2059..41755..986376..22238670..514990479..11843513563..273193577866

%C .0.34.148.6521.197883.6925085.232041425.7988200496.273193577866.9371551715962

%H R. H. Hardin, <a href="/A180760/b180760.txt">Table of n, a(n) for n=1..264</a>

%K nonn,tabl

%O 1,12

%A _R. H. Hardin_ Sep 20 2010

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Last modified August 11 12:12 EDT 2022. Contains 356065 sequences. (Running on oeis4.)