Number of (n+2)X(1+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally and vertically.
A253813
Number of (n+2)X(1+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally and vertically.
Terms
- a(0) =512a(1) =2700a(2) =12680a(3) =47816a(4) =178752a(5) =618856a(6) =2201616a(7) =7686444a(8) =27456624a(9) =97621664a(10) =351178392a(11) =1260927472a(12) =4551240904a(13) =16412577588a(14) =59322609368a(15) =214326499116a(16) =775118000256
External references
- oeis: A253813