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 A205273 T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally, and new values 0..1 introduced in row major order 9
 223, 1606, 1606, 11553, 21537, 11553, 82991, 288483, 288483, 82991, 596414, 3849194, 7191926, 3849194, 596414, 4285989, 51416847, 178174596, 178174596, 51416847, 4285989, 30799890, 686818023, 4422079769, 8174802163, 4422079769 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts .......223.........1606..........11553.............82991...............596414 ......1606........21537.........288483...........3849194.............51416847 .....11553.......288483........7191926.........178174596...........4422079769 .....82991......3849194......178174596........8174802163.........376019663515 ....596414.....51416847.....4422079769......376019663515.......32079295935853 ...4285989....686818023...109752541538....17296548519787.....2736913657929574 ..30799890...9173723833..2723625483808...795473851332758...233446295978015247 .221334561.122534242638.67591734118641.36585763638080307.19913133812861822666 LINKS R. H. Hardin, Table of n, a(n) for n = 1..112 EXAMPLE Some solutions for n=3 k=3 ..0..1..1..1..1....0..1..1..0..1....0..0..0..0..1....0..0..1..1..1 ..1..0..1..1..1....1..0..1..0..0....0..1..1..0..0....0..1..1..0..0 ..1..0..0..1..0....1..0..1..1..1....1..1..0..0..0....0..0..1..0..0 ..0..0..1..0..0....0..0..1..0..0....0..0..0..0..0....1..1..1..0..1 ..0..0..1..1..1....0..0..1..0..1....1..1..0..0..1....1..0..1..1..0 CROSSREFS Sequence in context: A108819 A158226 A253953 * A205266 A152834 A139233 Adjacent sequences:  A205270 A205271 A205272 * A205274 A205275 A205276 KEYWORD nonn,tabl AUTHOR R. H. Hardin Jan 24 2012 STATUS approved

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Last modified April 22 10:28 EDT 2021. Contains 343174 sequences. (Running on oeis4.)