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 A207208 T(n,k)=Number of nXk 0..2 arrays avoiding the pattern z-1 z-1 z in any row, column, nw-to-se diagonal or ne-to-sw antidiagonal 12
 3, 9, 9, 25, 81, 25, 69, 625, 625, 69, 190, 4761, 11047, 4761, 190, 523, 36100, 192640, 193260, 36100, 523, 1440, 273529, 3375548, 7766709, 3345883, 273529, 1440, 3965, 2073600, 59151458, 317286068, 309262926, 58023139, 2073600, 3965, 10918 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts ....3........9..........25.............69...............190 ....9.......81.........625...........4761.............36100 ...25......625.......11047.........192640...........3375548 ...69.....4761......193260........7766709.........317286068 ..190....36100.....3345883......309262926.......29420037104 ..523...273529....58023139....12412097426.....2765632587041 .1440..2073600..1009600274...500670359576...261868042220093 .3965.15721225.17573182050.20211739475415.24816867454624858 LINKS R. H. Hardin, Table of n, a(n) for n = 1..97 EXAMPLE Some solutions for n=5 k=3 ..0..0..2....2..2..2....2..0..1....0..0..2....2..0..1....2..0..2....2..1..0 ..1..0..1....1..1..0....0..0..0....0..0..0....2..0..2....2..2..0....2..1..2 ..2..0..2....2..2..0....2..2..1....2..2..0....1..0..2....0..2..1....2..1..1 ..0..2..2....1..0..2....2..0..0....1..2..2....1..2..1....2..0..1....0..1..1 ..2..0..2....2..0..2....2..0..0....0..0..2....0..2..1....2..0..0....0..0..0 CROSSREFS Column 1 is A206727 Column 2 is A206728 Row 1 is A206727 Row 2 is A206728 Sequence in context: A267966 A263320 A226717 * A206734 A207358 A207201 Adjacent sequences:  A207205 A207206 A207207 * A207209 A207210 A207211 KEYWORD nonn,tabl AUTHOR R. H. Hardin Feb 15 2012 STATUS approved

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Last modified January 27 06:18 EST 2022. Contains 350601 sequences. (Running on oeis4.)