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 A285030 T(n,k) = Number of n X k 0..1 arrays with the number of 1's horizontally, antidiagonally or vertically adjacent to some 0 one less than the number of 0's adjacent to some 1. 8
 0, 0, 0, 1, 2, 1, 2, 6, 6, 2, 6, 26, 97, 26, 6, 12, 104, 442, 442, 104, 12, 28, 402, 4892, 6460, 4892, 402, 28, 56, 1578, 26226, 96458, 96458, 26226, 1578, 56, 119, 6196, 256732, 1449814, 3708321, 1449814, 256732, 6196, 119, 236, 24310, 1544872, 22043878 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,5 COMMENTS Table starts ..0....0.......1.........2...........6.............12...............28 ..0....2.......6........26.........104............402.............1578 ..1....6......97.......442........4892..........26226...........256732 ..2...26.....442......6460.......96458........1449814.........22043878 ..6..104....4892.....96458.....3708321.......85715676.......3064900470 .12..402...26226...1449814....85715676.....5075612300.....305391845288 .28.1578..256732..22043878..3064900470...305391845288...40651048407879 .56.6196.1544872.336883696.78636441270.18488589657334.4417815478017558 LINKS R. H. Hardin, Table of n, a(n) for n = 1..180 EXAMPLE Some solutions for n=4, k=4 ..1..0..0..1. .0..1..0..0. .1..0..1..0. .0..0..0..0. .1..1..1..1 ..1..0..0..0. .0..1..1..1. .0..1..0..0. .1..1..1..0. .0..1..0..1 ..0..1..1..0. .0..0..1..0. .1..0..0..0. .0..1..0..1. .0..0..0..0 ..1..1..0..0. .1..1..0..0. .1..1..1..0. .1..0..1..1. .0..0..1..0 CROSSREFS Column 1 is A284449. Sequence in context: A267864 A336524 A219570 * A281781 A351317 A094965 Adjacent sequences: A285027 A285028 A285029 * A285031 A285032 A285033 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Apr 08 2017 STATUS approved

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Last modified December 1 04:44 EST 2023. Contains 367468 sequences. (Running on oeis4.)