A281987 Number of nX7 0..1 arrays with no element unequal to more than four of its king-move neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

0, 2008, 226025, 4668914, 77613062, 1170765416, 16521306352, 225583845888, 3008079936046, 39403294497598, 509651810402523, 6522893815553876, 82799912439842465, 1043840089707547028, 13083226632116042091

Offset

1,2

Comments

Column 7 of A281988.

Links

R. H. Hardin, Table of n, a(n) for n = 1..62

Example

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

Crossrefs

Cf. A281988.

Sequence in context: A219083 A258553 A258560 * A172735 A172780 A172807

Adjacent sequences: A281984 A281985 A281986 * A281988 A281989 A281990

Keyword

nonn

Author

R. H. Hardin, Feb 04 2017

Status

approved