Number of nX4 0..2 arrays with rows and antidiagonals unimodal.
A223971
Number of nX4 0..2 arrays with rows and antidiagonals unimodal.
Terms
- a(0) =46a(1) =2116a(2) =76092a(3) =2558848a(4) =84988435a(5) =2809740785a(6) =92756321858
External references
- oeis: A223971