T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock diagonal maximum minus antidiagonal maximum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
A254092
T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock diagonal maximum minus antidiagonal maximum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
Terms
- a(0) =512a(1) =3436a(2) =3436a(3) =22728a(4) =37961a(5) =22728a(6) =148004a(7) =437412a(8) =438463a(9) =148004a(10) =977192a(11) =5131608a(12) =9231485a(13) =5146916a(14) =977192a(15) =6446656a(16) =60404379a(17) =194360930a(18) =194642351a(19) =60605766a(20) =6446656a(21) =42580424a(22) =708989540a(23) =4070778350a(24) =7181975282a(25) =4074710828
External references
- oeis: A254092