A240647 - 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

A240647

Number of nX6 0..1 arrays with no element equal to the same number of vertical neighbors as horizontal neighbors, with new values 0..1 introduced in row major order

5, 10, 60, 168, 953, 5304, 29481, 168320, 990468, 5920658, 36118925, 223452736, 1398014617, 8822174770, 56061936636, 358120024848, 2296837339689, 14776222949736, 95279221861053, 615439624491192, 3980504657629172

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

OFFSET

1,1

COMMENTS

Column 6 of A240649

LINKS

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

EXAMPLE

Some solutions for n=4

..0..1..0..1..0..1....0..0..0..1..1..1....0..1..0..0..1..0....0..1..0..1..1..1

..0..1..0..1..0..1....1..0..1..0..1..0....0..1..1..1..1..0....0..1..0..0..0..0

..1..1..1..1..1..1....1..0..1..0..1..0....1..1..1..0..1..0....0..1..0..1..0..1

..0..0..0..0..0..1....1..0..1..0..1..0....0..0..1..0..1..0....0..1..0..1..0..1

CROSSREFS

Sequence in context: A005438 A072309 A328332 * A062162 A062848 A054884

Adjacent sequences: A240644 A240645 A240646 * A240648 A240649 A240650

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 09 2014

STATUS

approved