A197749 - 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

A197749

Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,3,0,1,0 for x=0,1,2,3,4

13, 465, 17332, 462515, 15943658, 517762136, 16946352492, 558436739769, 18226535390462, 597638865062474, 19604855669620153, 642346166847903042, 21058400260743006736, 690290048778192927506, 22625839121192679890893

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

OFFSET

1,1

COMMENTS

Every 0 is next to 0 3's, every 1 is next to 1 3's, every 2 is next to 2 0's, every 3 is next to 3 1's, every 4 is next to 4 0's

Column 7 of A197750

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..96

EXAMPLE

Some solutions containing all values 0 to 4 for n=4

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

..2..2..0..4..0..0..2....0..4..0..0..0..0..0....1..0..1..0..4..0..0