A250948 Number of (6+1) X (n+1) 0..2 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.

13111, 128507, 1115035, 8976385, 65910564, 447407616, 2839711239, 17032477113, 97375685767, 534377877551, 2830978450213, 14545764469283, 72762581349552, 355496154794076, 1700887643549135, 7987526700446975, 36887717880334053

Offset

1,1

Comments

Row 6 of A250942.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

R. H. Hardin, Empirical recurrence of order 88

Formula

Empirical recurrence of order 88 (see link above).

Example

Some solutions for n=2
..0..0..0....0..1..1....0..0..2....1..0..2....0..0..2....0..0..1....1..1..0
..0..0..1....1..0..2....0..1..1....0..1..1....1..1..1....0..0..2....2..0..1
..1..1..0....2..1..1....0..2..0....0..1..1....2..0..2....1..1..1....2..0..1
..2..0..1....2..1..1....1..1..1....0..2..0....0..2..0....0..2..0....2..0..2
..2..1..2....2..1..1....1..2..0....0..2..1....2..0..2....2..0..2....2..1..1
..1..2..1....1..2..0....2..1..1....1..1..2....2..0..2....0..2..0....2..1..1
..2..1..2....2..1..1....2..2..0....2..2..1....1..1..1....1..1..1....2..1..2

Crossrefs

Cf. A250942.

Sequence in context: A015341 A233689 A250904 * A157433 A089212 A023320

Adjacent sequences: A250945 A250946 A250947 * A250949 A250950 A250951

Keyword

nonn

Author

R. H. Hardin, Nov 28 2014

Status

approved