Quasi-Carmichael numbers to exactly four bases.

Terms

a(0) =60491a(1) =61937a(2) =65311a(3) =76151a(4) =116843a(5) =127723a(6) =159197a(7) =164009a(8) =168821a(9) =194417a(10) =272483a(11) =284987a(12) =329467a(13) =364087a(14) =369857a(15) =370817a(16) =385241a(17) =389327a(18) =395497a(19) =407837a(20) =423701a(21) =431393a(22) =465043a(23) =509461a(24) =613927a(25) =837209a(26) =853607a(27) =881717a(28) =999919a(29) =1041541