Composite numbers k == 1, 11 (mod 12) such that 3^((k-1)/2) == 1 (mod k).

Terms

a(0) =121a(1) =1729a(2) =2821a(3) =7381a(4) =8401a(5) =10585a(6) =15457a(7) =15841a(8) =18721a(9) =19345a(10) =23521a(11) =24661a(12) =28009a(13) =29341a(14) =31621a(15) =41041a(16) =46657a(17) =47197a(18) =49141a(19) =50881a(20) =52633a(21) =55969a(22) =63973a(23) =74593a(24) =75361a(25) =82513a(26) =87913a(27) =88573a(28) =93961a(29) =111361