Number of (5+2)X(n+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, vertically and ne-to-sw antidiagonally.
A255760
Number of (5+2)X(n+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, vertically and ne-to-sw antidiagonally.
Terms
- a(0) =99200a(1) =86062a(2) =81494a(3) =124928a(4) =196744a(5) =360501a(6) =553072a(7) =962648a(8) =1560352a(9) =2706176a(10) =4233320a(11) =6903168a(12) =10501880a(13) =16557800a(14) =24368576a(15) =36532028a(16) =52140896a(17) =76716744a(18) =106586856a(19) =150848380a(20) =204568672a(21) =287918836a(22) =383572584a(23) =523678364a(24) =685208352
External references
- oeis: A255760