Lower prime of a difference of 18 between consecutive primes.

Terms

a(0) =523a(1) =1069a(2) =1259a(3) =1381a(4) =1759a(5) =1913a(6) =2161a(7) =2503a(8) =2861a(9) =3803a(10) =3889a(11) =4159a(12) =4373a(13) =4423a(14) =4463a(15) =4603a(16) =4703a(17) =4733a(18) =5059a(19) =5209a(20) =5483a(21) =6011a(22) =6229a(23) =6451a(24) =6529a(25) =6581a(26) =6619a(27) =7159a(28) =7351a(29) =7393