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A203923 T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..1 introduced in row major order 9
112, 392, 392, 1400, 1682, 1400, 5000, 6050, 6050, 5000, 17800, 21632, 21470, 21632, 17800, 63368, 77618, 75272, 75272, 77618, 63368, 225704, 279752, 267066, 262088, 267066, 279752, 225704, 803912, 1008200, 949442, 916658, 916658, 949442, 1008200 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

....112.....392.....1400.....5000.....17800.....63368.....225704.....803912

....392....1682.....6050....21632.....77618....279752....1008200....3628818

...1400....6050....21470....75272....267066....949442....3376768...12014802

...5000...21632....75272...262088....916658...3220722...11309768...39783200

..17800...77618...267066...916658...3191760..11082632...38569884..134316050

..63368..279752...949442..3220722..11082632..38438912..132454088..457591752

.225704.1008200..3376768.11309768..38569884.132454088..457030140.1565984648

.803912.3628818.12014802.39783200.134316050.457591752.1565984648.5384729088

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..479

EXAMPLE

Some solutions for n=3 k=3

..0..0..1..1..1....0..0..0..0..0....0..1..1..0..0....0..1..0..1..1

..1..0..0..1..1....0..0..0..0..1....1..0..1..0..1....0..0..1..0..0

..0..0..0..0..1....1..0..0..0..1....1..1..0..1..0....1..0..0..1..0

..0..0..0..0..0....1..0..0..1..0....0..0..1..0..1....0..0..0..0..1

..1..1..0..0..0....0..0..1..0..1....0..1..1..0..0....0..1..0..0..0

CROSSREFS

Sequence in context: A233892 A233885 A235319 * A235312 A203916 A234681

Adjacent sequences:  A203920 A203921 A203922 * A203924 A203925 A203926

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Jan 07 2012

STATUS

approved

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Last modified May 20 13:02 EDT 2022. Contains 353873 sequences. (Running on oeis4.)