Number of n X n 0..1 arrays with every element unequal to 0, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.
A304946
Number of n X n 0..1 arrays with every element unequal to 0, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =4a(2) =13a(3) =26a(4) =189a(5) =1916a(6) =18950a(7) =401301a(8) =12197817a(9) =468373258
External references
- oeis: A304946