A295984 Number of nX7 0..1 arrays with each 1 adjacent to 2 or 3 king-move neighboring 1s.

1, 737, 8452, 124879, 6388097, 153675314, 3710803701, 113097325063, 3060234284708, 81692515465064, 2280199314485853, 62507114756334141, 1704727849120005972, 46881360345820072488, 1286005465572720177046

Offset

1,2

Comments

Column 7 of A295985.

Links

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

Example

Some solutions for n=4
..0..1..1..0..0..0..0. .0..0..1..1..1..1..0. .0..0..0..0..0..1..0
..0..1..0..1..0..1..1. .0..1..0..0..0..0..1. .1..1..0..0..1..0..1
..0..0..0..0..1..1..0. .0..0..1..1..1..0..1. .1..0..1..1..0..1..0
..0..0..0..0..0..0..0. .0..0..0..0..0..1..0. .0..0..0..0..1..0..0

Crossrefs

Cf. A295985.

Sequence in context: A156954 A231034 A004078 * A218596 A043633 A171641

Adjacent sequences: A295981 A295982 A295983 * A295985 A295986 A295987

Keyword

nonn

Author

R. H. Hardin, Dec 01 2017

Status

approved