Centered 18-gonal (or octadecagonal) primes.

Terms

a(0) =19a(1) =109a(2) =181a(3) =271a(4) =379a(5) =811a(6) =991a(7) =2161a(8) =3079a(9) =4159a(10) =4969a(11) =5851a(12) =7309a(13) =8929a(14) =10099a(15) =10711a(16) =13339a(17) =17029a(18) =21169a(19) =22051a(20) =23869a(21) =25759a(22) =26731a(23) =28729a(24) =32941a(25) =34039a(26) =37441a(27) =38611a(28) =39799a(29) =48619