Number of words of length n (n >= 1) over a two-letter alphabet having a minimal period of size n-1.
A019310
Number of words of length n (n >= 1) over a two-letter alphabet having a minimal period of size n-1.
Terms
- a(0) =0a(1) =2a(2) =2a(3) =6a(4) =10a(5) =22a(6) =38a(7) =82a(8) =154a(9) =318a(10) =614a(11) =1250a(12) =2462a(13) =4962a(14) =9842a(15) =19766a(16) =39378a(17) =78910a(18) =157502a(19) =315322a(20) =630030a(21) =1260674a(22) =2520098a(23) =5041446a(24) =10080430a(25) =20163322a(26) =40321682a(27) =80648326a(28) =161286810a(29) =322583462
External references
- oeis: A019310