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A251316 Number of (n+1)X(7+1) 0..1 arrays with no 2X2 subblock having the maximum of its diagonal elements greater than the absolute difference of its antidiagonal elements 1
2189, 20484, 186162, 1720147, 16024915, 149982413, 1401489913, 13088358653, 122472226217, 1147464543755, 10745979550709, 100582710069148, 941698101355544, 8820201458359056, 82614010198580274, 773674969786165964 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A251317

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

R. H. Hardin, Empirical recurrence of order 68

FORMULA

Empirical recurrence of order 68 (see link above)

EXAMPLE

Some solutions for n=3

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

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

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

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

CROSSREFS

Sequence in context: A081865 A085442 A208549 * A320718 A134158 A227488

Adjacent sequences:  A251313 A251314 A251315 * A251317 A251318 A251319

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 01 2014

STATUS

approved

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Last modified December 4 12:30 EST 2021. Contains 349497 sequences. (Running on oeis4.)