A232946 Number of nX6 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, vertically or antidiagonally, and top left element zero

243, 19601, 1905737, 190528543, 19245039957, 1950478851269, 197901829874065, 20086980767566967, 2039053074804891301, 206993879885121645333, 21013146715248092923555, 2133173021726653855603593

Offset

1,1

Comments

Column 6 of A232948

Links

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

R. H. Hardin, Empirical recurrence of order 57

Formula

Empirical recurrence of order 57 (see link above)

Example

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

Crossrefs

Sequence in context: A128833 A223478 A231860 * A223502 A232953 A222167

Adjacent sequences: A232943 A232944 A232945 * A232947 A232948 A232949

Keyword

nonn

Author

R. H. Hardin, Dec 02 2013

Status

approved