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 A266183 T(n,k)=Number of nXk arrays containing k copies of 0..n-1 with no element plus any diagonal or antidiagonal neighbor equal to n-1. 4
 1, 1, 2, 1, 2, 6, 1, 2, 22, 24, 1, 2, 88, 384, 120, 1, 2, 296, 7768, 19080, 720, 1, 2, 1372, 226296, 4027960, 1019328, 5040, 1, 2, 6128, 7089448, 1203241488, 2437859280, 106546608, 40320, 1, 2, 29552, 253282792, 409870443648, 8822224268688 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS Table starts ......1...........1.............1.............1............1.........1 ......2...........2.............2.............2............2.........2 ......6..........22............88...........296.........1372......6128 .....24.........384..........7768........226296......7089448.253282792 ....120.......19080.......4027960....1203241488.409870443648 ....720.....1019328....2437859280.8822224268688 ...5040...106546608.3971117183616 ..40320.11075595648 .362880 LINKS R. H. Hardin, Table of n, a(n) for n = 1..49 EXAMPLE Some solutions for n=3 k=4 ..2..0..1..0....0..2..1..2....2..1..0..0....1..2..0..1....0..2..2..0 ..1..2..1..0....1..0..2..0....2..1..0..1....2..0..2..0....1..1..1..1 ..2..0..1..2....1..2..0..1....2..1..2..0....1..1..0..2....2..2..0..0 CROSSREFS Column 1 is A000142. Column 2 is A265860. Sequence in context: A355721 A249027 A307584 * A232483 A338870 A265894 Adjacent sequences: A266180 A266181 A266182 * A266184 A266185 A266186 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Dec 23 2015 STATUS approved

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Last modified June 3 18:44 EDT 2023. Contains 363116 sequences. (Running on oeis4.)