1/36 the number of (n+2)X8 0..2 arrays with each 3X3 subblock containing two of one value, two of another, and five of the last.
A184454
1/36 the number of (n+2)X8 0..2 arrays with each 3X3 subblock containing two of one value, two of another, and five of the last.
Terms
- a(0) =51759a(1) =58413a(2) =67180a(3) =80058a(4) =116832a(5) =196974a(6) =413100a(7) =1288638
External references
- oeis: A184454