Numbers n palindromic in exactly three bases b, 2 <= b <= 10.

Terms

a(0) =9a(1) =10a(2) =21a(3) =40a(4) =55a(5) =63a(6) =65a(7) =80a(8) =85a(9) =100a(10) =130a(11) =154a(12) =164a(13) =178a(14) =191a(15) =195a(16) =203a(17) =235a(18) =242a(19) =255a(20) =257a(21) =273a(22) =282a(23) =292a(24) =300a(25) =325a(26) =328a(27) =341a(28) =400a(29) =455