Number of (n+1)X(4+1) 0..3 arrays with every element next to itself plus and minus one within the range 0..3 horizontally, vertically or antidiagonally, with no adjacent elements equal.
A232387
Number of (n+1)X(4+1) 0..3 arrays with every element next to itself plus and minus one within the range 0..3 horizontally, vertically or antidiagonally, with no adjacent elements equal.
Terms
- a(0) =190a(1) =840a(2) =4646a(3) =28752a(4) =178352a(5) =1186624a(6) =7492900a(7) =49210408a(8) =321677208a(9) =2090311668a(10) =13716554586a(11) =89613720870a(12) =585910981094
External references
- oeis: A232387