A224649 Number of (n+2)X8 0..1 matrices with each 3X3 subblock having the same population

62720, 80160, 103232, 135872, 215744, 356352, 630080, 1352064, 3050048, 7286336, 19187264, 51676800, 142349120, 406197120, 1168788032, 3391042112, 9967045184, 29393584512, 86973508160, 258663771264, 770373059648, 2297634053696

Offset

1,1

Comments

Column 6 of A224651

Links

R. H. Hardin, Table of n, a(n) for n = 1..36

Example

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

Crossrefs

Sequence in context: A254739 A205764 A209207 * A253854 A237675 A135430

Adjacent sequences: A224646 A224647 A224648 * A224650 A224651 A224652

Keyword

nonn

Author

R. H. Hardin Apr 13 2013

Status

approved