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 A250680 Number of (4+1)X(n+1) 0..3 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction 1
 11736, 210158, 3107446, 41503790, 505108522, 5726252240, 61498698426, 632850763138, 6297768773474, 61000028098516, 578059653008102, 5380105017634102, 49331581021446126, 446710039295094002 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 4 of A250676 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=1 ..2..0....2..1....1..2....3..0....2..0....0..2....1..2....0..2....1..1....0..3 ..0..2....3..0....3..0....3..0....2..1....0..2....3..0....2..0....2..0....1..2 ..2..0....3..0....1..2....3..0....2..2....0..2....1..2....2..1....2..2....1..2 ..1..3....3..0....2..1....2..1....2..3....0..2....2..1....2..1....1..3....2..1 ..3..1....3..0....3..0....1..3....3..2....1..1....2..3....2..2....2..2....0..3 CROSSREFS Sequence in context: A251347 A234863 A250695 * A045307 A229411 A235316 Adjacent sequences:  A250677 A250678 A250679 * A250681 A250682 A250683 KEYWORD nonn AUTHOR R. H. Hardin, Nov 26 2014 STATUS approved

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Last modified November 27 01:10 EST 2020. Contains 338670 sequences. (Running on oeis4.)