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

A255752

Number of (n+2)X(4+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) =30182a(1) =72884a(2) =111064a(3) =118925a(4) =124928a(5) =177281a(6) =306248a(7) =517386a(8) =766616a(9) =1335701a(10) =2994308a(11) =5759584a(12) =8957268a(13) =16979505a(14) =42027004a(15) =83952976a(16) =132161916a(17) =256397865a(18) =651345844a(19) =1313021560a(20) =2072742516a(21) =4044259761a(22) =10340350348a(23) =20890761568

External references