A223794 Number of 7Xn 0..2 arrays with rows, diagonals and antidiagonals unimodal

2187, 4782969, 862007289, 27088106846, 377163884938, 3219192158949, 20229461153969, 106414755617907, 508945269335431

Offset

1,1

Comments

Row 7 of A223789

Links

Table of n, a(n) for n=1..9.

Example

Some solutions for n=3
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..0..0..1....0..0..1....0..0..1....0..0..0....0..0..1....0..0..0....0..0..0
..0..1..1....0..1..1....0..1..1....0..0..1....0..0..0....0..1..0....0..0..0
..0..0..0....0..0..2....0..2..2....0..2..1....0..2..0....0..0..0....0..2..1
..0..0..1....0..0..0....0..0..0....0..1..0....0..0..1....0..0..2....0..0..0
..0..2..0....0..2..0....0..2..2....0..2..2....2..1..0....1..1..0....0..2..0
..0..0..2....1..1..0....2..0..0....0..2..1....1..1..0....0..2..0....0..1..1

Crossrefs

Sequence in context: A016843 A016891 A016951 * A223980 A223575 A184693

Adjacent sequences: A223791 A223792 A223793 * A223795 A223796 A223797

Keyword

nonn

Author

R. H. Hardin Mar 27 2013

Status

approved