Length of the n-th Zimin word (A082215(n)).

Terms

a(0) =1a(1) =3a(2) =7a(3) =15a(4) =31a(5) =63a(6) =127a(7) =255a(8) =511a(9) =1024a(10) =2050a(11) =4102a(12) =8206a(13) =16414a(14) =32830a(15) =65662a(16) =131326a(17) =262654a(18) =525310a(19) =1050622a(20) =2101246a(21) =4202494a(22) =8404990a(23) =16809982a(24) =33619966a(25) =67239934a(26) =134479870a(27) =268959742a(28) =537919486a(29) =1075838974