Primes p such that 87 is a square mod p.

Terms

a(0) =2a(1) =3a(2) =13a(3) =17a(4) =19a(5) =23a(6) =29a(7) =31a(8) =41a(9) =43a(10) =59a(11) =71a(12) =79a(13) =83a(14) =89a(15) =101a(16) =107a(17) =109a(18) =113a(19) =127a(20) =137a(21) =163a(22) =167a(23) =179a(24) =181a(25) =211a(26) =227a(27) =239a(28) =241a(29) =269