Prime numbers p such that p - primepi(p) is a square, where primepi is the prime counting function.

Terms

a(0) =2a(1) =3a(2) =37a(3) =541a(4) =647a(5) =881a(6) =1151a(7) =1301a(8) =1627a(9) =2377a(10) =3271a(11) =5179a(12) =5641a(13) =10501a(14) =11597a(15) =11821a(16) =18503a(17) =20543a(18) =23339a(19) =31259a(20) =35461a(21) =38669a(22) =39499a(23) =42901a(24) =43331a(25) =44201a(26) =45523a(27) =51973a(28) =53407a(29) =67213