A202721 Number of (n+3) X 6 binary arrays with no more than three of any consecutive four bits set in any row or column.

7434207, 355151781, 16878985502, 798649122250, 37651764287736, 1779844229799877, 84110153180887751, 3974202717759802658, 187775034013209154550, 8872609325526237693362, 419237061675092916719453

Offset

1,1

Comments

Column 3 of A202726.

Links

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

Example

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

Crossrefs

Cf. A202726.

Sequence in context: A268406 A302135 A104921 * A375418 A233702 A233707

Adjacent sequences: A202718 A202719 A202720 * A202722 A202723 A202724

Keyword

nonn

Author

R. H. Hardin, Dec 23 2011

Status

approved