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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
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
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.)