Numbers of the form a^a + b^b, a >= b > 0.

Terms

a(0) =2a(1) =5a(2) =8a(3) =28a(4) =31a(5) =54a(6) =257a(7) =260a(8) =283a(9) =512a(10) =3126a(11) =3129a(12) =3152a(13) =3381a(14) =6250a(15) =46657a(16) =46660a(17) =46683a(18) =46912a(19) =49781a(20) =93312a(21) =823544a(22) =823547a(23) =823570a(24) =823799a(25) =826668a(26) =870199a(27) =1647086a(28) =16777217a(29) =16777220