Numbers beginning with letter 't' when spelled out in English.

Terms

a(0) =2a(1) =3a(2) =10a(3) =12a(4) =13a(5) =20a(6) =21a(7) =22a(8) =23a(9) =24a(10) =25a(11) =26a(12) =27a(13) =28a(14) =29a(15) =30a(16) =31a(17) =32a(18) =33a(19) =34a(20) =35a(21) =36a(22) =37a(23) =38a(24) =39a(25) =200a(26) =201a(27) =202a(28) =203a(29) =204