A299312 Number of nX6 0..1 arrays with every element equal to 1, 2, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

5, 49, 199, 2528, 24519, 270346, 3203795, 36378590, 417642077, 4822467446, 55430028860, 637788505212, 7344874274460, 84535258092563, 972944766688659, 11199796394782944, 128917185100141603, 1483879490840389393

Offset

1,1

Comments

Column 6 of A299314.

Links

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

Example

Some solutions for n=5
..0..0..1..1..1..0. .0..1..0..0..1..0. .0..1..1..1..1..0. .0..0..0..1..0..1
..1..0..1..0..1..0. .1..0..1..1..0..1. .0..0..1..1..0..0. .1..1..1..0..1..0
..0..1..0..1..1..1. .1..0..0..0..0..1. .0..0..0..0..0..0. .0..1..1..1..1..1
..1..1..1..1..0..0. .1..0..0..0..0..0. .1..0..1..0..0..0. .1..0..0..1..0..0
..0..0..1..1..1..0. .0..1..0..0..1..1. .0..1..0..1..1..0. .0..1..0..1..1..0

Crossrefs

Cf. A299314.

Sequence in context: A298394 A299512 A183333 * A300113 A007406 A196326

Adjacent sequences: A299309 A299310 A299311 * A299313 A299314 A299315

Keyword

nonn

Author

R. H. Hardin, Feb 06 2018

Status

approved