A222355 Number of nX3 0..1 arrays with no more than floor(nX3/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..1 order

1, 1, 5, 24, 27, 176, 404, 2180, 3751, 21261, 44985, 238441, 483280, 2549426, 5537716, 28412352, 62022509, 314794248, 706911054, 3539578743, 8030595379, 39896971556, 91762984752, 452730150747, 1049361132758, 5153972338487, 12033114257303

Offset

1,3

Comments

Column 3 of A222360

Links

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

Example

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

Crossrefs

Sequence in context: A112613 A305057 A333633 * A335352 A056234 A030766

Adjacent sequences: A222352 A222353 A222354 * A222356 A222357 A222358

Keyword

nonn

Author

R. H. Hardin Feb 16 2013

Status

approved