Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column plus the two sums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally.

A259001

Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column plus the two sums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally.

Terms

    a(0) =9374a(1) =18341a(2) =55760a(3) =116098a(4) =142316a(5) =191035a(6) =134036a(7) =138255a(8) =135282a(9) =125066a(10) =136926a(11) =137549a(12) =144388a(13) =157396a(14) =164184a(15) =173168a(16) =185086a(17) =194970a(18) =199468a(19) =222173a(20) =221824a(21) =227101a(22) =257586a(23) =254779a(24) =269678a(25) =292721a(26) =283212a(27) =305637a(28) =337320a(29) =325206

External references