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A258909 Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock diagonal median plus antidiagonal median nondecreasing horizontally and vertically 1
3644672, 77704089, 2026873370, 55658584373, 1346660412346, 33594417416223, 843497063678720, 20397369281984560, 489343554187851696, 11717335464723341419, 277507963941823404580, 6517999553991196939304 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A258910
LINKS
EXAMPLE
Some solutions for n=1
..0..0..0..0..0..0..1..1..1....0..0..0..0..0..1..0..0..1
..0..0..0..0..0..0..1..1..1....0..0..0..0..0..0..0..1..0
..0..0..0..0..0..0..1..1..1....1..0..1..0..0..0..1..1..0
CROSSREFS
Sequence in context: A350335 A253992 A253999 * A090074 A114686 A217673
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 14 2015
STATUS
approved

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Last modified February 25 00:32 EST 2024. Contains 370308 sequences. (Running on oeis4.)