Number of n-length words on {0,1,2,3,4} in which 0 appears only in runs of length 2.
A255117
Number of n-length words on {0,1,2,3,4} in which 0 appears only in runs of length 2.
Terms
- a(0) =1a(1) =4a(2) =17a(3) =72a(4) =304a(5) =1284a(6) =5424a(7) =22912a(8) =96784a(9) =408832a(10) =1726976a(11) =7295040a(12) =30815488a(13) =130169856a(14) =549859584a(15) =2322700288a(16) =9811480576a(17) =41445360640a(18) =175072243712a(19) =739534897152
External references
- oeis: A255117