Lesser of consecutive primes whose sum is a perfect power (A001597).

Terms

a(0) =3a(1) =17a(2) =47a(3) =61a(4) =71a(5) =107a(6) =283a(7) =881a(8) =1151a(9) =1913a(10) =2591a(11) =3527a(12) =4049a(13) =4093a(14) =6047a(15) =7193a(16) =7433a(17) =10973a(18) =15137a(19) =20807a(20) =21617a(21) =24197a(22) =26903a(23) =28793a(24) =34847a(25) =37039a(26) =46817a(27) =53129a(28) =56443a(29) =69191