A183508 - 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

A183508

T(n,k)=Number of nXk 0..3 arrays with no element equal to the sum mod 4 of its horizontal and vertical neighbors

3, 12, 12, 27, 81, 27, 81, 776, 776, 81, 252, 6561, 19683, 6561, 252, 729, 59292, 531441, 531441, 59292, 729, 2187, 531441, 14369472, 43146816, 14369472, 531441, 2187, 6588, 4786704, 387420489, 3486784401, 3486784401, 387420489, 4786704, 6588

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

OFFSET

1,1

COMMENTS

Table starts

.....3........12...........27.............81.............252.............729

....12........81..........776...........6561...........59292..........531441

....27.......776........19683.........531441........14369472.......387420489

....81......6561.......531441.......43146816......3486784401....282429536481

...252.....59292.....14369472.....3486784401....847298204784.205891132094649

...729....531441....387420489...282429536481.205891132094649

..2187...4786704..10460353203.22876792454961

..6588..43046721.282432195144

.19683.387440172

.59049

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..59

EXAMPLE

Some solutions for 4X3

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

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

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

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

CROSSREFS

Sequence in context: A217785 A168410 A085272 * A070732 A197208 A292624

Adjacent sequences: A183505 A183506 A183507 * A183509 A183510 A183511

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Jan 05 2011

STATUS

approved