login
A298665
Number of nX6 0..1 arrays with every element equal to 0, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.
1
1, 1, 8, 9, 38, 169, 238, 1019, 3112, 7518, 25887, 74736, 218787, 690826, 2069920, 6363967, 19855161, 61528839, 192963096, 609853755, 1933979526, 6175400889, 19859400627, 64164744962, 208511225451, 681665542190, 2238543624216
OFFSET
1,3
COMMENTS
Column 6 of A298667.
LINKS
EXAMPLE
Some solutions for n=8
..0..1..1..0..1..0. .0..0..1..0..0..1. .0..0..0..0..0..1. .0..0..1..1..0..0
..1..1..1..1..1..1. .0..0..0..0..0..0. .0..0..1..0..0..0. .0..0..1..1..0..0
..1..0..1..1..1..1. .0..1..0..0..1..0. .1..0..0..0..0..0. .0..1..1..1..1..0
..1..1..1..1..0..1. .0..0..0..0..0..0. .0..0..0..0..0..1. .0..1..1..1..0..0
..1..0..1..1..1..1. .1..0..0..1..0..0. .0..0..1..0..0..0. .0..0..1..1..0..0
..1..1..1..1..1..0. .0..0..0..0..0..1. .1..0..0..0..1..0. .0..1..1..1..1..0
..1..1..1..0..1..1. .0..0..0..0..0..0. .0..0..0..0..0..0. .0..0..1..1..0..0
..0..1..1..1..1..1. .1..0..0..1..0..0. .1..0..0..1..0..0. .0..0..1..1..0..0
CROSSREFS
Cf. A298667.
Sequence in context: A075079 A317379 A376120 * A284822 A222354 A041933
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 24 2018
STATUS
approved