Indices of the Sylvester primes (A375543) in the primes (A000040).

Terms

a(0) =1a(1) =2a(2) =4a(3) =14a(4) =6a(5) =34a(6) =101a(7) =111a(8) =174a(9) =42a(10) =300a(11) =21a(12) =340a(13) =3238a(14) =1652a(15) =2049a(16) =3345a(17) =5354a(18) =6676a(19) =7322a(20) =12037a(21) =30205a(22) =51733a(23) =7357a(24) =99091a(25) =167580a(26) =2967a(27) =15042a(28) =2354a(29) =193