Exponents k where A000120(3^k) - A070939(3^k)/2 reaches a new maximum.

Terms

a(0) =0a(1) =1a(2) =3a(3) =5a(4) =11a(5) =27a(6) =71a(7) =119a(8) =140a(9) =158a(10) =198a(11) =218a(12) =441a(13) =537a(14) =538a(15) =868a(16) =1092a(17) =2128a(18) =2294a(19) =2343a(20) =2811a(21) =2911a(22) =3849a(23) =4003a(24) =4655a(25) =5079a(26) =5279a(27) =5920a(28) =6269a(29) =6603