Number of 0..7 arrays x(0..n+1) of n+2 elements without any interior element greater than both neighbors.
A200885
Number of 0..7 arrays x(0..n+1) of n+2 elements without any interior element greater than both neighbors.
Terms
- a(0) =372a(1) =1856a(2) =9052a(3) =45648a(4) =235538a(5) =1215616a(6) =6233356a(7) =31868448a(8) =163014678a(9) =834763824a(10) =4276077566a(11) =21900661172a(12) =112149148911a(13) =574278200480
External references
- oeis: A200885