Primes p such that all prime factors of p-1 have exponent 2.

Terms

a(0) =2a(1) =5a(2) =37a(3) =101a(4) =197a(5) =677a(6) =4357a(7) =5477a(8) =8837a(9) =12101a(10) =16901a(11) =17957a(12) =21317a(13) =28901a(14) =42437a(15) =44101a(16) =52901a(17) =98597a(18) =106277a(19) =148997a(20) =164837a(21) =184901a(22) =217157a(23) =220901a(24) =224677a(25) =324901a(26) =401957a(27) =417317a(28) =427717a(29) =454277