Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally and vertically.
A253819
Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally and vertically.
Terms
- a(0) =2201616a(1) =7125170a(2) =19727216a(3) =64664493a(4) =232090516a(5) =681245242a(6) =1124641848a(7) =2291068882a(8) =6153419870a(9) =17431190894a(10) =49973500334a(11) =132892076022a(12) =373427021268
External references
- oeis: A253819