T(n,k) = 1/4 the number of (n+1) X (k+1) 0..3 arrays with no 2 X 2 subblock having sum 6.
A183802
T(n,k) = 1/4 the number of (n+1) X (k+1) 0..3 arrays with no 2 X 2 subblock having sum 6.
Terms
- a(0) =53a(1) =706a(2) =706a(3) =9395a(4) =31541a(5) =9395a(6) =125050a(7) =1405874a(8) =1405874a(9) =125050a(10) =1664363a(11) =62693809a(12) =209636605a(13) =62693809a(14) =1664363a(15) =22152262a(16) =2795479074a(17) =31282399226a(18) =31282399226a(19) =2795479074a(20) =22152262a(21) =294840155a(22) =124651925557
External references
- oeis: A183802