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, 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

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

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: A322797 A075079 A317379 * A284822 A222354 A041933

Adjacent sequences: A298662 A298663 A298664 * A298666 A298667 A298668

Keyword

nonn

Author

R. H. Hardin, Jan 24 2018

Status

approved