Triangular numbers that are emirpimes.

Terms

a(0) =15a(1) =1891a(2) =3403a(3) =5671a(4) =12403a(5) =15931a(6) =64261a(7) =73153a(8) =104653a(9) =114481a(10) =188191a(11) =226801a(12) =286903a(13) =351541a(14) =371953a(15) =392941a(16) =497503a(17) =518671a(18) =597871a(19) =665281a(20) =703891a(21) =853471a(22) =933661a(23) =1034641a(24) =1104841a(25) =1159003a(26) =1309771a(27) =1537381a(28) =1660753a(29) =1755001