T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock sum of the medians of the diagonal and antidiagonal minus the two sums of the central row and column nondecreasing horizontally and vertically.
A254845
T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock sum of the medians of the diagonal and antidiagonal minus the two sums of the central row and column nondecreasing horizontally and vertically.
Terms
- a(0) =512a(1) =2485a(2) =2485a(3) =8776a(4) =10550a(5) =8776a(6) =30182a(7) =37642a(8) =37642a(9) =30182a(10) =99200a(11) =117706a(12) =131776a(13) =117706a(14) =99200a(15) =293012a(16) =298165a(17) =340387a(18) =340387a(19) =298165a(20) =293012a(21) =794128a(22) =645882a(23) =638688a(24) =701614a(25) =638688a(26) =645882a(27) =794128a(28) =2084773a(29) =1323795
External references
- oeis: A254845