Log base 3 (n) mod 31.

Terms

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