A198534 T(n,k)=Number of 2nX2k 0..4 arrays with values 0..4 introduced in row major order and each element equal to an odd number of horizontal and vertical neighbors

2, 17, 17, 377, 7376, 377, 11473, 5724014, 5724014, 11473, 375273, 4685798318, 116594439780, 4685798318, 375273, 12456897, 3879729611186

Offset

1,1

Comments

Table starts

......2.........17..........377......11473........375273.12456897

.....17.......7376......5724014.4685798318.3879729611186

....377....5724014.116594439780

..11473.4685798318

.375273

Links

Table of n, a(n) for n=1..17.

Example

Some solutions for n=3 k=2
..0..0..0..1....0..1..0..1....0..1..0..1....0..1..0..1....0..1..0..0
..1..0..2..1....0..1..0..1....0..1..0..1....0..1..0..1....0..1..2..1
..1..1..2..3....2..3..2..0....2..2..1..0....2..2..3..3....3..3..2..1
..1..0..0..3....2..3..2..0....3..3..1..0....4..4..0..0....0..4..4..4
..3..1..2..2....0..0..3..3....4..4..2..2....1..1..2..1....0..0..4..3
..3..1..4..4....4..4..1..1....1..1..4..4....4..4..2..1....0..1..1..3

Crossrefs

Column 1 is A198405

Sequence in context: A198290 A198596 A198408 * A032936 A263329 A342470

Adjacent sequences: A198531 A198532 A198533 * A198535 A198536 A198537

Keyword

nonn,tabl

Author

R. H. Hardin Oct 26 2011

Status

approved