Number of (7+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.
A255762
Number of (7+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) =794128a(1) =290525a(2) =145536a(3) =306248a(4) =300504a(5) =733081a(6) =739776a(7) =1603012a(8) =1998480a(9) =4087836a(10) =5951488a(11) =11586092a(12) =18011344a(13) =33446520a(14) =52638248a(15) =91911020a(16) =141968656a(17) =236249776a(18) =355847440a(19) =566125804a(20) =828298440a(21) =1272368584a(22) =1814128584
External references
- oeis: A255762