Odd integers k such that 3^((k-1)/2) == 1 (mod k*(k-2)).

Terms

a(0) =457a(1) =1297a(2) =6481a(3) =14401a(4) =26497a(5) =44101a(6) =47521a(7) =47881a(8) =165601a(9) =225457a(10) =446881a(11) =560737a(12) =576721a(13) =677041a(14) =1037857a(15) =1049941a(16) =1649341a(17) =1903981a(18) =1934137a(19) =2291041a(20) =3990601a(21) =4110121a(22) =4262161a(23) =4663297a(24) =4736341a(25) =5293081a(26) =5317057a(27) =5372929a(28) =6410497a(29) =6535681