A281138 Number of n X 7 0..2 arrays with no element equal to more than one of its king-move neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

94, 11712, 32692, 27218, 33199, 51158, 85874, 144256, 244623, 428484, 747152, 1278134, 2146672, 3549190, 5803459, 9465536, 15485913, 25464946, 41965199, 69135700, 113521499, 185665582, 302427845, 491382680, 797156409, 1292806478

Offset

1,1

Comments

Column 7 of A281139.

Links

R. H. Hardin, Table of n, a(n) for n = 1..83

Example

Some solutions for n=4
..0..1..0..0..1..2..1. .0..1..0..2..1..1..2. .0..1..0..1..1..2..1
..0..2..1..2..1..0..1. .2..2..0..2..0..2..0. .1..2..0..2..0..0..1
..1..2..0..2..0..2..1. .0..1..0..1..0..1..0. .0..2..1..2..1..2..1
..0..1..0..1..1..2..0. .0..1..2..1..2..1..2. .0..1..0..0..1..0..2

Crossrefs

Cf. A281139.

Sequence in context: A084238 A252769 A218519 * A127457 A337954 A281325

Adjacent sequences: A281135 A281136 A281137 * A281139 A281140 A281141

Keyword

nonn

Author

R. H. Hardin, Jan 15 2017

Status

approved