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A237735 Number of (n+2) X (2+2) 0..1 arrays with the (lower) median of each row and column nondecreasing. 1
790, 13259, 105639, 1707200, 13980344, 219064013, 1853523145, 28043965682, 244945512750, 3576754641447, 32147201401103, 454105760467216, 4184801089025920, 57381572683004213, 540369123875778033 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 2 of A237738.
LINKS
EXAMPLE
Some solutions for n=3
..0..0..1..0....1..0..0..1....1..0..0..1....0..0..0..0....0..1..0..0
..0..0..0..0....0..0..0..0....1..0..0..0....1..0..0..1....1..0..0..0
..1..1..0..0....0..1..1..0....0..1..1..1....0..0..0..0....0..0..0..1
..0..0..0..1....0..0..0..0....0..1..1..1....1..0..1..0....0..1..1..0
..1..0..0..1....1..1..1..0....0..1..1..1....0..0..1..0....1..0..0..1
CROSSREFS
Cf. A237738.
Sequence in context: A207532 A167587 A182387 * A252517 A263010 A351670
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 12 2014
STATUS
approved

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Last modified June 21 21:50 EDT 2024. Contains 373559 sequences. (Running on oeis4.)