Number of length-n 0..4 arrays with no repeated value differing from the previous repeated value by one or less.
A269602
Number of length-n 0..4 arrays with no repeated value differing from the previous repeated value by one or less.
Terms
- a(0) =5a(1) =25a(2) =120a(3) =572a(4) =2692a(5) =12570a(6) =58280a(7) =268704a(8) =1233046a(9) =5636046a(10) =25675580a(11) =116635916a(12) =528551090a(13) =2390183046a(14) =10789164304a(15) =48625122028a(16) =218845692934a(17) =983773248134
External references
- oeis: A269602