Numbers of the form x^x + y^y, 1 < x < y.

Terms

a(0) =31a(1) =260a(2) =283a(3) =3129a(4) =3152a(5) =3381a(6) =46660a(7) =46683a(8) =46912a(9) =49781a(10) =823547a(11) =823570a(12) =823799a(13) =826668a(14) =870199a(15) =16777220a(16) =16777243a(17) =16777472a(18) =16780341a(19) =16823872a(20) =17600759a(21) =387420493a(22) =387420516a(23) =387420745a(24) =387423614a(25) =387467145a(26) =388244032a(27) =404197705a(28) =10000000004