A298336 Number of n X 7 0..1 arrays with every element equal to 1, 2, 3, 4 or 6 king-move adjacent elements, with upper left element zero.

8, 2907, 124972, 4442111, 166636876, 6373591375, 242019919082, 9195408207604, 349596064308984, 13289221930157480, 505154202939902297, 19202793498324482545, 729969404353402609142, 27748773715560235983333

Offset

1,1

Comments

Column 7 of A298337.

Links

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

Example

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

Crossrefs

Cf. A298337.

Sequence in context: A125539 A297922 A298546 * A299397 A299227 A300039

Adjacent sequences: A298333 A298334 A298335 * A298337 A298338 A298339

Keyword

nonn

Author

R. H. Hardin, Jan 17 2018

Status

approved