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A250699 Number of (n+1)X(n+1) 0..3 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction 0
100, 4958, 301632, 19962956, 1325146542, 85271480338, 5300798582250, 321304832475298, 19214828391609706, 1144064129571045403, 68214697806201152135, 4084627265006830276517 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A250707
LINKS
EXAMPLE
Some solutions for n=2
..0..0..1....0..0..1....0..0..0....0..0..1....0..0..2....0..0..1....1..2..1
..0..0..2....0..1..2....0..3..1....0..1..1....0..1..2....0..0..1....2..1..3
..0..0..3....3..1..2....2..1..3....1..0..2....2..3..3....1..3..3....1..2..2
CROSSREFS
Sequence in context: A117685 A091134 A017816 * A035745 A035810 A017763
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 26 2014
STATUS
approved

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Last modified July 25 08:17 EDT 2024. Contains 374586 sequences. (Running on oeis4.)