a(n) = 2^n mod 67.

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =16a(5) =32a(6) =64a(7) =61a(8) =55a(9) =43a(10) =19a(11) =38a(12) =9a(13) =18a(14) =36a(15) =5a(16) =10a(17) =20a(18) =40a(19) =13a(20) =26a(21) =52a(22) =37a(23) =7a(24) =14a(25) =28a(26) =56a(27) =45a(28) =23a(29) =46