Numbers that can be represented as both a^x + x and b^y + b, for some a, b, x, y > 1.

Terms

a(0) =6a(1) =18a(2) =20a(3) =30a(4) =66a(5) =258a(6) =260a(7) =732a(8) =1026a(9) =3130a(10) =4098a(11) =4100a(12) =16386a(13) =19686a(14) =46662a(15) =65538a(16) =65540a(17) =65552a(18) =262146a(19) =531444a(20) =823550a(21) =1048578a(22) =1048580a(23) =4194306a(24) =9765630a(25) =14348910a(26) =16777218a(27) =16777220a(28) =16777224a(29) =67108866