A209018 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A209018

Number of nX7 0..3 arrays with no element equal the average of immediate neighbors vertically above, diagonally above and left, and horizontally left of it

2916, 20918008, 148774643618, 1057701934285612, 7521858792951566188, 53490209804089514438574, 380386826513820237531618354, 2705056288752965649168385141630, 19236551636169391849856640820638184

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 7 of A209019

LINKS

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

EXAMPLE

Some solutions for n=4

..1..3..0..1..2..3..2....2..3..1..2..1..2..3....1..3..2..3..0..1..3

..2..0..2..2..1..1..0....3..0..3..3..0..2..3....3..0..0..3..1..3..3

..1..2..2..3..1..0..0....2..1..1..2..1..2..0....2..0..1..2..0..3..0