A219172 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..2 nX7 array

28, 302, 24670, 1613256, 80593130, 3500147133, 144424701184, 5595306138684

Offset

1,1

Comments

Column 7 of A219173

Links

Table of n, a(n) for n=1..8.

Example

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

Crossrefs

Sequence in context: A126662 A156711 A107942 * A334882 A196513 A042520

Adjacent sequences: A219169 A219170 A219171 * A219173 A219174 A219175

Keyword

nonn

Author

R. H. Hardin Nov 13 2012

Status

approved