Overpseudoprimes to base 3.

Terms

a(0) =121a(1) =703a(2) =3281a(3) =8401a(4) =12403a(5) =31621a(6) =44287a(7) =47197a(8) =55969a(9) =74593a(10) =79003a(11) =88573a(12) =97567a(13) =105163a(14) =112141a(15) =211411a(16) =221761a(17) =226801a(18) =228073a(19) =293401a(20) =313447a(21) =320167a(22) =328021a(23) =340033a(24) =359341a(25) =432821a(26) =443713a(27) =453259a(28) =478297a(29) =497503