Number of (n+2)X(7+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.
A255755
Number of (n+2)X(7+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) =778827a(2) =551068a(3) =619142a(4) =553072a(5) =652833a(6) =739776a(7) =1010588a(8) =1167904a(9) =1647077a(10) =2006720a(11) =3026536a(12) =3618544a(13) =5468116a(14) =6840960a(15) =10854544a(16) =13156336a(17) =20486224a(18) =25908560a(19) =41893728a(20) =51031728a(21) =80282112a(22) =101902288a(23) =165773792
External references
- oeis: A255755