a(n) = 2^n mod 173.

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =16a(5) =32a(6) =64a(7) =128a(8) =83a(9) =166a(10) =159a(11) =145a(12) =117a(13) =61a(14) =122a(15) =71a(16) =142a(17) =111a(18) =49a(19) =98a(20) =23a(21) =46a(22) =92a(23) =11a(24) =22a(25) =44a(26) =88a(27) =3a(28) =6a(29) =12