Number of (4+2)X(n+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.

A259009

Number of (4+2)X(n+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) =34698a(1) =59549a(2) =116098a(3) =225215a(4) =402742a(5) =780329a(6) =1284465a(7) =2218382a(8) =3724801a(9) =6307988a(10) =10527894a(11) =17501266a(12) =28940280a(13) =47007866a(14) =75374462a(15) =120165915a(16) =189056785a(17) =293834152a(18) =452340776a(19) =689561240a(20) =1040594004a(21) =1555721598a(22) =2303970789

External references