Number of 0..6 arrays x(0..n+1) of n+2 elements without any two consecutive increases or two consecutive decreases.
A200836
Number of 0..6 arrays x(0..n+1) of n+2 elements without any two consecutive increases or two consecutive decreases.
Terms
- a(0) =273a(1) =1491a(2) =8239a(3) =45465a(4) =250913a(5) =1384813a(6) =7642875a(7) =42181611a(8) =232803603a(9) =1284861277a(10) =7091249941a(11) =39137163521a(12) =216001069269
External references
- oeis: A200836