A198485 T(n,k)=Number of 2nX2k 0..3 arrays with values 0..3 introduced in row major order and each element equal to an even number of horizontal and vertical neighbors

5, 193, 193, 10072, 333308, 10072, 528283, 579476701, 579476701, 528283, 27711478, 1007486056500, 33408897045776, 1007486056500, 27711478, 1453628917, 1751630302786777, 1926147852876420067, 1926147852876420067

Offset

1,1

Comments

Table starts

..........5..............193...............10072..............528283

........193...........333308...........579476701.......1007486056500

......10072........579476701......33408897045776.1926147852876420067

.....528283....1007486056500.1926147852876420067

...27711478.1751630302786777

.1453628917

Links

R. H. Hardin, Table of n, a(n) for n = 1..24

Example

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

Crossrefs

Sequence in context: A015102 A086124 A211505 * A177192 A100760 A240702

Adjacent sequences: A198482 A198483 A198484 * A198486 A198487 A198488

Keyword

nonn,tabl

Author

R. H. Hardin Oct 25 2011

Status

approved