A296114 Number of nX7 0..1 arrays with each 1 adjacent to 3 or 4 king-move neighboring 1s.

1, 31, 163, 528, 14057, 197661, 1993970, 34228975, 553395326, 7928926956, 124899730636, 1980681750366, 30488334143159, 475731319452531, 7458437039181799, 116223839824981401, 1813729259133179024

Offset

1,2

Comments

Column 7 of A296115.

Links

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

Example

Some solutions for n=6
..0..0..0..0..1..1..0. .1..1..1..1..1..0..0. .0..1..0..1..1..0..0
..1..1..1..1..1..0..1. .1..1..0..1..0..1..0. .1..1..1..0..1..1..0
..1..1..0..0..0..1..1. .0..0..0..0..0..1..1. .0..1..0..0..0..1..0
..0..0..0..0..0..1..0. .0..0..0..0..0..0..1. .0..1..0..0..0..1..0
..0..0..0..0..1..1..0. .1..1..0..1..1..1..1. .0..1..1..1..0..1..1
..0..0..0..0..1..1..0. .1..1..1..1..0..1..0. .0..0..1..0..1..1..0

Crossrefs

Cf. A296115.

Sequence in context: A372931 A268258 A142306 * A184497 A184489 A140540

Adjacent sequences: A296111 A296112 A296113 * A296115 A296116 A296117

Keyword

nonn

Author

R. H. Hardin, Dec 04 2017

Status

approved