T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum plus the lower median minus the minimum of every 2X2 subblock equal.
A237315
T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum plus the lower median minus the minimum of every 2X2 subblock equal.
Terms
- a(0) =256a(1) =1352a(2) =1352a(3) =7398a(4) =12690a(5) =7398a(6) =42474a(7) =120650a(8) =120650a(9) =42474a(10) =246644a(11) =1218584a(12) =1928204a(13) =1218584a(14) =246644a(15) =1457838a(16) =12256598a(17) =33313192a(18) =33313192a(19) =12256598a(20) =1457838a(21) =8652288a(22) =126084160a(23) =564748168a(24) =1008893682a(25) =564748168a(26) =126084160
External references
- oeis: A237315