Composite numbers with both 10 and -10 as primitive root.

Terms

a(0) =289a(1) =841a(2) =3721a(3) =4913a(4) =9409a(5) =11881a(6) =12769a(7) =22201a(8) =24389a(9) =32761a(10) =37249a(11) =52441a(12) =54289a(13) =66049a(14) =72361a(15) =83521a(16) =97969a(17) =113569a(18) =151321a(19) =187489a(20) =212521a(21) =226981a(22) =259081a(23) =292681a(24) =332929a(25) =351649a(26) =491401a(27) =502681a(28) =674041a(29) =707281