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A254426 Number of (5+1)X(n+1) 0..2 arrays with every 2X2 subblock diagonal maximum minus antidiagonal maximum nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
42669, 2182689, 106821947, 5909079229, 310310891535, 16806656467840, 899162029841114, 48457383051958172, 2604389633916102156, 140215640892138848346, 7544756499025174329096, 406138457118644849157522 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 5 of A254422
LINKS
EXAMPLE
Some solutions for n=1
..2..2....1..2....2..0....0..2....1..2....1..2....0..1....1..1....0..1....0..1
..2..2....2..2....2..0....0..2....0..1....0..1....1..0....1..1....1..1....2..2
..2..1....0..1....2..2....2..2....1..0....2..2....2..1....0..1....1..1....1..0
..2..2....0..1....1..1....1..1....2..1....1..2....2..2....1..1....1..0....1..1
..0..1....1..1....2..2....2..2....2..1....2..2....1..1....0..0....2..2....1..0
..1..2....2..2....1..0....0..2....2..2....1..0....0..2....0..2....2..2....0..2
CROSSREFS
Sequence in context: A187959 A253521 A254419 * A147635 A236032 A014892
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 30 2015
STATUS
approved

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Last modified April 12 16:20 EDT 2024. Contains 371635 sequences. (Running on oeis4.)