A299193 Number of nX7 0..1 arrays with every element equal to 0, 1, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.

21, 203, 129, 2466, 25097, 80188, 848789, 8080772, 44495267, 401953734, 3543442090, 25212181714, 216188808140, 1850221884503, 14678677380641, 124620964817279, 1059123538097555, 8784723556861615, 74638466920690089

Offset

1,1

Comments

Column 7 of A299194.

Links

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

Example

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

Crossrefs

Cf. A299194.

Sequence in context: A298500 A298319 A299392 * A300029 A339521 A160768

Adjacent sequences: A299190 A299191 A299192 * A299194 A299195 A299196

Keyword

nonn

Author

R. H. Hardin, Feb 04 2018

Status

approved