Number of (n+1)X(2+1) 0..2 arrays with every element both >= and <= some horizontal or vertical neighbor.
A232118
Number of (n+1)X(2+1) 0..2 arrays with every element both >= and <= some horizontal or vertical neighbor.
Terms
- a(0) =109a(1) =1667a(2) =26029a(3) =411015a(4) =6462505a(5) =101738935a(6) =1601238913a(7) =25202545399a(8) =396671747797
External references
- oeis: A232118