a(n) = 2^n mod 61.

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =16a(5) =32a(6) =3a(7) =6a(8) =12a(9) =24a(10) =48a(11) =35a(12) =9a(13) =18a(14) =36a(15) =11a(16) =22a(17) =44a(18) =27a(19) =54a(20) =47a(21) =33a(22) =5a(23) =10a(24) =20a(25) =40a(26) =19a(27) =38a(28) =15a(29) =30