A180766 Half the number of nX6 binary arrays with each element equal to at least one neighbor.
5, 361, 14621, 606546, 25448809, 1064583557, 44560487654, 1865051797753, 78060898850787, 3267207111743056, 136747572763258659, 5723512289789881283, 239555203487051506472, 10026482454922619039947, 419654213169799743389447
Offset: 1
Keywords
Links
- R. H. Hardin, Table of n, a(n) for n=1..199
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