A218180 Number of nX7 arrays of the minimum value of corresponding elements and their horizontal and vertical neighbors in a random 0..3 nX7 array

602, 172038, 70125438, 20223079322, 6885852440176, 2257342895377582

Offset

1,1

Comments

Column 7 of A218181

Links

Table of n, a(n) for n=1..6.

Example

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

Crossrefs

Sequence in context: A281561 A184193 A218650 * A218521 A145331 A252957

Adjacent sequences: A218177 A218178 A218179 * A218181 A218182 A218183

Keyword

nonn

Author

R. H. Hardin Oct 22 2012

Status

approved