A298659 Number of nX7 0..1 arrays with every element equal to 1, 2, 4, 6 or 7 king-move adjacent elements, with upper left element zero.

8, 95, 63, 322, 876, 2562, 7964, 24801, 74358, 242072, 745571, 2349275, 7433849, 23406485, 73834463, 233339001, 735993576, 2324359169, 7339529089, 23174991985, 73178503209, 231090268648, 729735594047, 2304427312579, 7277098813048

Offset

1,1

Comments

Column 7 of A298660.

Links

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

Example

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

Crossrefs

Cf. A298660.

Sequence in context: A298092 A298054 A298887 * A299611 A392172 A099298

Adjacent sequences: A298656 A298657 A298658 * A298660 A298661 A298662

Keyword

nonn

Author

R. H. Hardin, Jan 24 2018

Status

approved