A219421 T(n,k)=Unchanging value maps: number of nXk binary arrays indicating the locations of corresponding elements unequal to no horizontal or antidiagonal neighbor in a random 0..2 nXk array

1, 2, 1, 4, 7, 1, 7, 20, 21, 1, 12, 57, 93, 65, 1, 21, 160, 453, 436, 200, 1, 37, 454, 2121, 3617, 2043, 616, 1, 65, 1292, 9926, 28154, 28888, 9573, 1897, 1, 114, 3676, 46776, 218838, 372560, 230726, 44857, 5842, 1, 200, 10452, 220655, 1709703, 4775307

Offset

1,2

Comments

Table starts

.1......2.........4...........7.............12................21

.1......7........20..........57............160...............454

.1.....21........93.........453...........2121..............9926

.1.....65.......436........3617..........28154............218838

.1....200......2043.......28888.........372560...........4775307

.1....616......9573......230726........4934366.........104434119

.1...1897.....44857.....1842766.......65352789........2284814260

.1...5842....210190....14717828......865523957.......49979133672

.1..17991....984904...117548611....11462977378.....1093274545336

.1..55405...4615043...938839259...151815415029....23915155162485

.1.170625..21625074..7498337380..2010639231109...523138192294728

.1.525456.101330329.59887849061.26628853182336.11443519356879492

Links

R. H. Hardin, Table of n, a(n) for n = 1..178

Example

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

Crossrefs

Column 2 is A218836

Column 3 is A218837

Column 4 is A218838

Row 1 is A005251(n+2)

Sequence in context: A121722 A193591 A218842 * A297314 A220386 A219410

Adjacent sequences: A219418 A219419 A219420 * A219422 A219423 A219424

Keyword

nonn,tabl

Author

R. H. Hardin Nov 19 2012

Status

approved