Smallest prime p such that A290174(i) = n, where i is the index of p in A000040.

Terms

a(0) =2a(1) =11a(2) =41a(3) =19a(4) =71a(5) =367a(6) =587a(7) =131a(8) =1151a(9) =1987a(10) =4253a(11) =8831a(12) =11839a(13) =117497a(14) =12269a(15) =28279a(16) =297793a(17) =167711a(18) =1748653a(19) =1427297a(20) =7655719a(21) =13992553a(22) =4594229a(23) =12932441a(24) =54321763a(25) =32833217a(26) =112155839a(27) =231132271a(28) =211119257a(29) =1154494127