|
|
A297985
|
|
Number of nX7 0..1 arrays with every element equal to 0, 2, 3 or 6 king-move adjacent elements, with upper left element zero.
|
|
1
|
|
|
1, 94, 21, 79, 105, 242, 444, 935, 1835, 3921, 8793, 19694, 44948, 102048, 235955, 545484, 1264620, 2932659, 6807942, 15840667, 36867513, 85882218, 200113634, 466535260, 1088021475, 2538033638, 5921858545, 13819429210, 32254710106
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,2
|
|
COMMENTS
|
Column 7 of A297986.
|
|
LINKS
|
R. H. Hardin, Table of n, a(n) for n = 1..210
|
|
EXAMPLE
|
Some solutions for n=7
..0..1..0..1..1..0..0. .0..0..0..0..0..1..1. .0..0..1..1..1..1..1
..0..0..0..1..0..1..0. .0..1..1..1..1..0..1. .0..1..0..0..0..0..1
..0..1..0..1..0..1..0. .1..0..0..0..1..0..0. .0..1..1..1..1..1..0
..1..1..0..1..0..1..0. .0..1..1..0..1..0..1. .1..0..0..0..0..0..1
..1..0..0..1..0..1..0. .0..0..1..0..1..1..1. .0..1..1..1..1..1..0
..0..1..1..1..0..0..1. .1..0..1..0..1..0..1. .1..0..0..0..0..0..1
..0..0..0..0..1..1..1. .1..1..0..1..0..0..0. .1..1..1..1..1..1..1
|
|
CROSSREFS
|
Cf. A297986.
Sequence in context: A263517 A299827 A146551 * A298634 A033414 A218053
Adjacent sequences: A297982 A297983 A297984 * A297986 A297987 A297988
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
R. H. Hardin, Jan 10 2018
|
|
STATUS
|
approved
|
|
|
|