Number of n X n 0..1 arrays with every element unequal to 0, 1, 2 or 4 king-move adjacent elements, with upper left element zero.
A303793
Number of n X n 0..1 arrays with every element unequal to 0, 1, 2 or 4 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =4a(2) =17a(3) =90a(4) =562a(5) =5282a(6) =15478a(7) =394667a(8) =587035a(9) =47608207a(10) =23125171a(11) =8706714125a(12) =1066431672a(14) =56568350211
External references
- oeis: A303793