Number of nX3 0..2 arrays with new values 0..2 introduced in row major order and no element equal to any knight-move neighbor (colorings ignoring permutations of colors).
A208429
Number of nX3 0..2 arrays with new values 0..2 introduced in row major order and no element equal to any knight-move neighbor (colorings ignoring permutations of colors).
Terms
- a(0) =5a(1) =54a(2) =129a(3) =339a(4) =1123a(5) =4155a(6) =15273a(7) =55715a(8) =205199a(9) =758647a(10) =2804053a(11) =10360467a(12) =38311103a(13) =141717367a(14) =524247989a(15) =1939302323a(16) =7174276855a(17) =26541315667a(18) =98190495765a(19) =363259275051
External references
- oeis: A208429