A280232 Number of nX7 0..1 arrays with no element unequal to a strict majority of its king-move neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
15, 42, 95, 678, 3376, 16282, 80825, 377706, 1780344, 8321484, 38431266, 177322266, 812861536, 3712259660, 16906747879, 76738963064, 347459922194, 1569637145558, 7075367986446, 31833804360316, 142976818494750, 641124031114626
Offset: 1
Keywords
Examples
Some solutions for n=4 ..0..0..0..0..1..1..1. .0..0..0..1..1..1..1. .0..0..0..0..0..0..0 ..0..0..0..0..1..1..1. .1..0..0..1..1..1..1. .0..0..0..0..0..1..1 ..1..1..0..0..0..1..1. .0..0..0..0..1..1..1. .1..1..0..0..1..1..1 ..1..1..1..0..0..1..1. .0..0..0..0..1..1..1. .1..1..1..1..1..1..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
Crossrefs
Cf. A280233.
Comments