A278206 Number of nX6 0..1 arrays with every element both equal and not equal to some elements at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) (1,-1) (1,0) or (1,1), with upper left element zero.
0, 601, 34869, 1674402, 93838003, 5306819216, 297169006604, 16636687338399, 931945034345185, 52205261260655693, 2924300169544392520, 163806092390120341088, 9175698877050626080778, 513982345733812946152984
Offset: 1
Keywords
Examples
Some solutions for n=3 ..0..0..1..0..0..1. .0..0..1..1..0..1. .0..1..1..1..0..1. .0..1..1..1..0..1 ..0..1..1..0..0..1. .0..1..1..0..1..1. .0..0..0..0..1..0. .0..1..0..1..0..1 ..0..1..1..0..0..0. .1..1..1..0..0..0. .1..1..0..1..0..0. .0..0..1..0..1..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
Crossrefs
Cf. A278208.
Comments