A222536 Number of nX3 0..1 arrays with no more than floor(nX3/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..1 order

1, 5, 9, 58, 155, 871, 2393, 13852, 38685, 227848, 638554, 3811983, 10724465, 64547868, 182220044, 1102419756, 3122673165, 18955832586, 53858530973, 327720105059, 933666488801, 5691414779665, 16252763969566, 99215649565169

Offset

1,2

Comments

Column 3 of A222541

Links

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

Example

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

Crossrefs

Sequence in context: A283918 A284382 A143554 * A222698 A200440 A347991

Adjacent sequences: A222533 A222534 A222535 * A222537 A222538 A222539

Keyword

nonn

Author

R. H. Hardin Feb 24 2013

Status

approved