a(n) is the first occurrence of n in A334200.

Terms

a(0) =1a(1) =2a(2) =3a(3) =5a(4) =7a(5) =11a(6) =21a(7) =33a(8) =49a(9) =77a(10) =121a(11) =231a(12) =343a(13) =539a(14) =847a(15) =1331a(16) =2401a(17) =3773a(18) =5929a(19) =9317a(20) =14641a(21) =26411a(22) =41503a(23) =65219a(24) =102487a(25) =161051a(26) =290521a(27) =456533a(28) =717409a(29) =1127357