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 A293100 T(n,k) = Number of n X k 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 two less than the number of 0's adjacent to some 1. 13
 0, 0, 0, 0, 0, 0, 0, 9, 5, 0, 0, 42, 48, 30, 0, 1, 150, 567, 554, 126, 0, 3, 596, 3619, 8088, 3334, 520, 0, 10, 2220, 29952, 114318, 115870, 30837, 2088, 0, 24, 8376, 205195, 1676740, 3125547, 1710994, 202363, 8192, 0, 60, 31959, 1668655, 24773296 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,8 COMMENTS Table starts .0.....0........0..........0.............0................1..................3 .0.....0........9.........42...........150..............596...............2220 .0.....5.......48........567..........3619............29952.............205195 .0....30......554.......8088........114318..........1676740...........24773296 .0...126.....3334.....115870.......3125547.........95603353.........2728695681 .0...520....30837....1710994......96199260.......5589631828.......328979478088 .0..2088...202363...25504769....2804027631.....331401441383.....38469698642410 .0..8192..1733660..383909610...85892871786...19865025530414...4665971856266714 .0.32083.12139768.5821195059.2579471093496.1200437139032383.560706154294046909 LINKS R. H. Hardin, Table of n, a(n) for n = 1..143 EXAMPLE Some solutions for n=4, k=4 ..0..0..0..0. .0..0..0..1. .0..1..1..0. .1..1..0..1. .1..1..0..0 ..1..0..0..0. .1..1..0..0. .1..0..0..1. .0..1..0..1. .0..1..1..0 ..1..1..0..1. .1..0..1..0. .1..0..1..0. .0..0..1..0. .1..1..0..0 ..0..0..1..0. .0..1..0..1. .0..1..0..0. .0..0..0..1. .1..0..0..0 CROSSREFS Column 2 is A286973. Row 1 is A286209. Sequence in context: A214102 A321575 A336610 * A195360 A177973 A145436 Adjacent sequences: A293097 A293098 A293099 * A293101 A293102 A293103 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Sep 30 2017 STATUS approved

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Last modified March 1 20:05 EST 2024. Contains 370443 sequences. (Running on oeis4.)