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A204031
Number of (n+1)X(n+1) 0..1 arrays with the sums of 2X2 subblocks nondecreasing rightwards and downwards
1
16, 164, 2928, 44366, 969528, 16895850, 397550036, 7576693894, 184631622106, 3777035543236, 93707916130348, 2028328695512904, 50826307266520194
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A204039
LINKS
Table of n, a(n) for n=1..13.
EXAMPLE
Some solutions for n=4
..0..1..1..1..0....1..1..0..0..0....1..0..1..1..0....0..0..1..1..1
..1..0..0..0..1....0..0..1..1..1....0..1..0..1..1....0..1..0..1..1
..0..1..1..1..0....1..1..0..1..0....1..1..1..1..1....0..1..1..1..1
..0..1..0..1..1....0..1..1..1..1....1..1..1..1..1....0..1..1..1..1
..0..1..1..1..0....1..1..1..1..1....1..1..1..1..1....0..1..1..1..1
CROSSREFS
Sequence in context: A094857 A274801 A274747 * A341084 A025930 A125404
Adjacent sequences: A204028 A204029 A204030 * A204032 A204033 A204034
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 09 2012
STATUS
approved

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Last modified September 28 10:43 EDT 2024. Contains 376292 sequences.
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