Number of 0..3 arrays of length n avoiding the consecutive pattern 0..3.
A206450
Number of 0..3 arrays of length n avoiding the consecutive pattern 0..3.
Terms
- a(0) =4a(1) =16a(2) =64a(3) =255a(4) =1016a(5) =4048a(6) =16128a(7) =64257a(8) =256012a(9) =1020000a(10) =4063872a(11) =16191231a(12) =64508912a(13) =257015648a(14) =1023998720a(15) =4079803649a(16) =16254705684a(17) =64761807088a(18) =258023229632
External references
- oeis: A206450