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A253658 Number of (n+1)X(4+1) 0..2 arrays with every 2X2 subblock diagonal maximum minus antidiagonal maximum unequal to its neighbors horizontally, vertically and nw-se diagonally 1
23524, 181308, 2113406, 21509980, 213776286, 2149355346, 21597168872, 212331840928, 2118953225888, 21018774727072, 207807555539492, 2058146122078016, 20392160021728370, 201460156911473766 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 4 of A253662
LINKS
EXAMPLE
Some solutions for n=2
..2..1..0..0..1....2..1..0..2..0....1..0..2..2..0....1..0..0..2..1
..2..0..2..0..1....1..0..2..1..0....2..0..0..0..1....0..1..0..0..1
..0..2..1..1..0....2..2..0..2..2....2..0..2..1..2....2..1..0..1..1
CROSSREFS
Sequence in context: A237528 A234441 A253310 * A253728 A227483 A237508
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 07 2015
STATUS
approved

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Last modified April 19 13:40 EDT 2024. Contains 371792 sequences. (Running on oeis4.)