Number of n X n 0..1 arrays with every element equal to 1, 2, 3, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
A299603
Number of n X n 0..1 arrays with every element equal to 1, 2, 3, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =4a(2) =48a(3) =466a(4) =5125a(5) =75970a(6) =1284100a(7) =30465069a(8) =1069988410a(9) =50612692651
External references
- oeis: A299603