a(n) = 2^n mod 131.

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =16a(5) =32a(6) =64a(7) =128a(8) =125a(9) =119a(10) =107a(11) =83a(12) =35a(13) =70a(14) =9a(15) =18a(16) =36a(17) =72a(18) =13a(19) =26a(20) =52a(21) =104a(22) =77a(23) =23a(24) =46a(25) =92a(26) =53a(27) =106a(28) =81a(29) =31