Number of (n+2)X(5+2) 0..3 arrays with each 3X3 subblock having the sum of its 72 absolute element differences equal to 52, and no adjacent elements equal.
A234866
Number of (n+2)X(5+2) 0..3 arrays with each 3X3 subblock having the sum of its 72 absolute element differences equal to 52, and no adjacent elements equal.
Terms
- a(0) =1791552a(1) =7418922a(2) =33431812a(3) =161033032a(4) =896839320a(5) =5592546520a(6) =34471724096a(7) =229415016404
External references
- oeis: A234866