a(n) = 7*n + 1.

Terms

a(0) =1a(1) =8a(2) =15a(3) =22a(4) =29a(5) =36a(6) =43a(7) =50a(8) =57a(9) =64a(10) =71a(11) =78a(12) =85a(13) =92a(14) =99a(15) =106a(16) =113a(17) =120a(18) =127a(19) =134a(20) =141a(21) =148a(22) =155a(23) =162a(24) =169a(25) =176a(26) =183a(27) =190a(28) =197a(29) =204