Numbers having period-7 4-digitized sequences.

Terms

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