T(n,4), array T as in A050186; a count of aperiodic binary words.

Terms

a(0) =0a(1) =5a(2) =12a(3) =35a(4) =64a(5) =126a(6) =200a(7) =330a(8) =480a(9) =715a(10) =980a(11) =1365a(12) =1792a(13) =2380a(14) =3024a(15) =3876a(16) =4800a(17) =5985a(18) =7260a(19) =8855a(20) =10560a(21) =12650a(22) =14872a(23) =17550a(24) =20384a(25) =23751a(26) =27300a(27) =31465a(28) =35840a(29) =40920