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A293087 T(n,k) = Number of n X k 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 two less than the number of 0's adjacent to some 1. 14
0, 0, 0, 0, 0, 0, 0, 5, 1, 0, 0, 23, 53, 10, 0, 1, 124, 486, 498, 60, 0, 3, 518, 4091, 8108, 4013, 304, 0, 10, 2103, 32070, 125848, 126903, 31689, 1420, 0, 24, 8304, 246852, 1900201, 3786544, 1955375, 246743, 6312, 0, 60, 32561, 1897509, 28709764 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,8
COMMENTS
Table starts
.0.....0........0..........0.............0................1..................3
.0.....0........5.........23...........124..............518...............2103
.0.....1.......53........486..........4091............32070.............246852
.0....10......498.......8108........125848..........1900201...........28709764
.0....60.....4013.....126903.......3786544........112687158.........3370860734
.0...304....31689....1955375.....114271723.......6736259130.......400400301913
.0..1420...246743...30064393....3464680837.....405651046593.....48001754870966
.0..6312..1915490..462569756..105517939849...24578475941654...5797084510052322
.0.27167.14853287.7127871677.3226317873349.1496865603233666.704256987414278983
LINKS
EXAMPLE
Some solutions for n=4, k=4
..0..0..1..0. .0..0..0..0. .0..0..0..0. .0..0..1..1. .1..1..0..0
..0..0..0..0. .1..0..0..0. .0..0..0..0. .0..1..1..1. .1..1..0..0
..1..1..0..1. .1..0..0..1. .1..1..0..1. .0..0..0..0. .0..0..0..1
..0..0..1..1. .0..0..0..0. .0..0..1..0. .0..1..0..0. .0..0..1..0
CROSSREFS
Row 1 is A286209.
Sequence in context: A283784 A361353 A281563 * A209349 A242095 A336169
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Sep 30 2017
STATUS
approved

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Last modified April 14 20:39 EDT 2024. Contains 371667 sequences. (Running on oeis4.)