Number of (n+2)X(6+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal maximum minus antidiagonal minimum unequal to its neighbors horizontally and vertically.
A253365
Number of (n+2)X(6+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal maximum minus antidiagonal minimum unequal to its neighbors horizontally and vertically.
Terms
- a(0) =3472a(1) =5664a(2) =27072a(3) =53128a(4) =175328a(5) =520888a(6) =1255456a(7) =4289736a(8) =9455136a(9) =31254904a(10) =73764448a(11) =218493128a(12) =577738400a(13) =1574888312a(14) =4449330272a(15) =12022817096a(16) =33692526368a(17) =94722902008a(18) =253587884000a(19) =742190201160
External references
- oeis: A253365