Number of (n+2)X3 0..3 arrays with each 3X3 subblock singular.
A184660
Number of (n+2)X3 0..3 arrays with each 3X3 subblock singular.
Terms
- a(0) =49246a(1) =1352770a(2) =35802874a(3) =742295518a(4) =17984702194a(5) =426536161750
External references
- oeis: A184660