Positions of primes within Dana Scott's sequence (A048736).

Terms

a(0) =4a(1) =5a(2) =6a(3) =7a(4) =9a(5) =11a(6) =14a(7) =19a(8) =25a(9) =27a(10) =38a(11) =208a(12) =289a(13) =433a(14) =529a(15) =1069a(16) =1163a(17) =1801a(18) =5185a(19) =5630a(20) =8148a(21) =9731a(22) =11124a(23) =23787a(24) =46056a(25) =64182a(26) =82629a(27) =92124a(28) =97221