Number of (n+2)X(2+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the diagonal and antidiagonal minus the sum of the medians of the central row and column nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
A258505
Number of (n+2)X(2+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the diagonal and antidiagonal minus the sum of the medians of the central row and column nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
Terms
- a(0) =2679a(1) =12156a(2) =56526a(3) =304844a(4) =1627220a(5) =8659189a(6) =46288077a(7) =247098224a(8) =1317234754a(9) =7027083732a(10) =37495141913a(11) =200030678904
External references
- oeis: A258505