Number of nX7 0..1 arrays with every element unequal to 0, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A318090
Number of nX7 0..1 arrays with every element unequal to 0, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =23a(2) =15a(3) =1976a(4) =8525a(5) =68301a(6) =504606a(7) =4057433a(8) =31285292a(9) =240249513a(10) =1835199684a(11) =14224588572a(12) =109059566554a(13) =843075304556
External references
- oeis: A318090