login
A298955
Number of nX6 0..1 arrays with every element equal to 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
1
0, 5, 5, 11, 22, 102, 390, 1990, 8875, 42338, 200422, 1001873, 4864576, 24344988, 120791381, 599718216, 2979586795, 14824136258, 73594777737, 365973623961, 1819455689317, 9043962959653, 44964812729586, 223577501339948
OFFSET
1,2
COMMENTS
Column 6 of A298957.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..1..1..1. .0..0..1..1..1..1. .0..0..1..1..1..1. .0..0..0..1..1..1
..0..0..0..1..1..1. .0..0..1..1..1..1. .0..0..1..1..1..1. .0..0..0..1..1..1
..0..0..0..1..1..1. .1..1..0..0..0..0. .0..0..1..1..1..1. .0..0..1..0..1..1
..1..1..1..0..0..0. .1..1..0..0..0..0. .1..1..0..0..0..0. .1..1..0..1..0..0
..1..1..1..0..0..0. .1..1..0..0..0..0. .1..1..0..0..0..0. .1..1..1..0..0..0
CROSSREFS
Cf. A298957.
Sequence in context: A298165 A301800 A214827 * A299591 A350920 A173316
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 30 2018
STATUS
approved