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A254026 Number of (7+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
1267488, 2035893, 3051110, 6033603, 12254144, 26519069, 45398628, 79505757, 151171642, 294669082, 556904588, 1050666632, 1947133972, 3502846663, 6300247808, 11382424345, 20344476646, 36237438719, 64227305420, 112853340126 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 7 of A254020

LINKS

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

EXAMPLE

Some solutions for n=1

..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0

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

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A222975 A180624 A081430 * A254019 A254893 A232203

Adjacent sequences:  A254023 A254024 A254025 * A254027 A254028 A254029

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 22 2015

STATUS

approved

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Last modified May 27 11:47 EDT 2022. Contains 354097 sequences. (Running on oeis4.)