T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with each 3X3 subblock singular.

A184663

T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with each 3X3 subblock singular.

Terms

    a(0) =49246a(1) =1352770a(2) =1352770a(3) =35802874a(4) =119805310a(5) =35802874a(6) =742295518a(7) =10047874534a(8) =10047874534a(9) =742295518a(10) =17984702194a(11) =564143008386a(13) =564143008386a(14) =17984702194a(15) =426536161750

External references