Primes p such that the multiplicative order of 3 modulo p is 2 times a power of 3.

Terms

a(0) =7a(1) =19a(2) =37a(3) =163a(4) =487a(5) =1297a(6) =1459a(7) =2917a(8) =19441a(9) =19927a(10) =39367a(11) =59779a(12) =131221a(13) =208657a(14) =224209a(15) =572023a(16) =2051893a(17) =5062663a(18) =8503057a(19) =19131877a(20) =44457337a(21) =86093443a(22) =113863969a(23) =133923133a(24) =258280327a(25) =565571323a(26) =600830137a(27) =859270843a(28) =1319934691a(29) =4161183031