3^n times the expected value of the shortest run of 0's in a length n word on alphabet {0,1,2}.
A209243
3^n times the expected value of the shortest run of 0's in a length n word on alphabet {0,1,2}.
Terms
- a(0) =0a(1) =1a(2) =6a(3) =25a(4) =88a(5) =285a(6) =882a(7) =2661a(8) =7916a(9) =23381a(10) =68850a(11) =202621a(12) =596768a(13) =1760289a(14) =5201854a(15) =15401317a(16) =45682536a(17) =135728009a(18) =403864570a(19) =1203278513a(20) =3589064828a(21) =10715405153a(22) =32017223498a(23) =95730557865a(24) =286392391568a(25) =857187336029
External references
- oeis: A209243