A300935 Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

32, 383, 1225, 4781, 21787, 97745, 399796, 1701284, 7433503, 32417536, 140360415, 609184367, 2654263514, 11566795167, 50371762399, 219467643962, 956898961507, 4173024718286, 18199035218402, 79379381620061, 346287240775232

Offset

1,1

Comments

Column 6 of A300937.

Links

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

Example

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

Crossrefs

Cf. A300937.

Sequence in context: A280602 A301321 A300496 * A300879 A301489 A087024

Adjacent sequences: A300932 A300933 A300934 * A300936 A300937 A300938

Keyword

nonn

Author

R. H. Hardin, Mar 16 2018

Status

approved