Number of nX3 nonnegative integer arrays with new values 0 upwards introduced in row major order and no element equal to any knight-move neighbor (colorings ignoring permutations of colors).
A207999
Number of nX3 nonnegative integer arrays with new values 0 upwards introduced in row major order and no element equal to any knight-move neighbor (colorings ignoring permutations of colors).
Terms
- a(0) =5a(1) =114a(2) =4141a(3) =426422a(4) =86545486a(5) =29169661126
External references
- oeis: A207999