A222572 Number of nX7 0..2 arrays with no more than floor(nX7/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order

17, 292, 3999, 212957, 4102865, 278335019, 7240361264, 617491399888, 18298988998017, 1694595769301401, 52003776367692101, 4919456993064095471, 152349901845469645928, 14488875201941399981117, 449914171737778687124896

Offset

1,1

Comments

Column 7 of A222573

Links

Table of n, a(n) for n=1..15.

Example

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

Crossrefs

Sequence in context: A178765 A041546 A186000 * A163049 A083453 A090437

Adjacent sequences: A222569 A222570 A222571 * A222573 A222574 A222575

Keyword

nonn

Author

R. H. Hardin Feb 25 2013

Status

approved