Number of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally and vertically.
A253818
Number of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally and vertically.
Terms
- a(0) =618856a(1) =2008068a(2) =5735723a(3) =19866443a(4) =75927303a(5) =250052478a(6) =681245242a(7) =1390601653a(8) =3467027641a(9) =8832217221a(10) =24155618827a(11) =62298137597a(12) =169253832792a(13) =473982068000
External references
- oeis: A253818