Repeat n m times, where m is number of letters in English word for the number.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =1a(5) =1a(6) =1a(7) =2a(8) =2a(9) =2a(10) =3a(11) =3a(12) =3a(13) =3a(14) =3a(15) =4a(16) =4a(17) =4a(18) =4a(19) =5a(20) =5a(21) =5a(22) =5a(23) =6a(24) =6a(25) =6a(26) =7a(27) =7a(28) =7a(29) =7