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A253859 Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal minimum nondecreasing horizontally and vertically 1
114880, 2654464, 54933632, 1095205120, 21906994304, 440235663616, 8790291559808, 174215495453184, 3458303106355840, 68564000487874304, 1357894964344788864, 26884160899080973312, 532052742617270613120 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 4 of A253863
LINKS
EXAMPLE
Some solutions for n=1
..0..0..0..0..0..1....0..0..1..1..1..0....0..1..0..0..1..1....0..1..0..1..0..1
..1..1..0..1..1..1....0..0..1..0..1..0....0..0..0..1..0..0....1..0..0..1..1..0
..0..0..0..1..1..1....0..0..0..1..1..0....1..1..0..1..0..1....0..1..1..1..1..1
CROSSREFS
Sequence in context: A233732 A254494 A254487 * A237692 A186791 A069245
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 17 2015
STATUS
approved

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Last modified April 14 03:22 EDT 2024. Contains 371652 sequences. (Running on oeis4.)