A219290 Number of nX7 arrays of the minimum value of corresponding elements and their horizontal or vertical neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..1 nX7 array

7, 18, 220, 2623, 22970, 185295, 1455308, 11001188, 78655701, 530818425, 3400770086, 20765160878, 121095265926, 675886798131, 3619746974319, 18647969101899, 92619652248187, 444385154988709, 2063495070975608

Offset

1,1

Comments

Column 7 of A219291

Links

R. H. Hardin, Table of n, a(n) for n = 1..41

Example

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

Crossrefs

Sequence in context: A202761 A196219 A219772 * A156238 A156295 A350216

Adjacent sequences: A219287 A219288 A219289 * A219291 A219292 A219293

Keyword

nonn

Author

R. H. Hardin Nov 17 2012

Status

approved