A180767 Half the number of nX7 binary arrays with each element equal to at least one neighbor.
8, 1172, 89602, 7053923, 561487456, 44560487654, 3538520414645, 280971809714842, 22310318523546774, 1771532822371947357, 140667082973087038600, 11169552997132511054788, 886909077729036810872471
Offset: 1
Keywords
Links
- R. H. Hardin, Table of n, a(n) for n=1..99
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