A298999 Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 3, 4 or 6 king-move adjacent elements, with upper left element zero.

32, 1841, 39015, 932318, 23031390, 564821426, 13849577141, 340272636359, 8360888694306, 205429207630824, 5047897978832238, 124042608868375165, 3048119277135250592, 74902250221349890637, 1840597493803525251058

Offset

1,1

Comments

Column 6 of A299001.

Links

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

Example

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

Crossrefs

Cf. A299001.

Sequence in context: A281835 A299079 A299842 * A299744 A299666 A300257

Adjacent sequences: A298996 A298997 A298998 * A299000 A299001 A299002

Keyword

nonn

Author

R. H. Hardin, Jan 31 2018

Status

approved