A218347 Numbers of the form a^a + b^b, a>=b>=0.

0, 1, 2, 4, 5, 8, 27, 28, 31, 54, 256, 257, 260, 283, 512, 3125, 3126, 3129, 3152, 3381, 6250, 46656, 46657, 46660, 46683, 46912, 49781, 93312, 823543, 823544, 823547, 823570, 823799, 826668, 870199, 1647086, 16777216, 16777217, 16777220, 16777243, 16777472, 16780341

Offset: 1

Author

Alex Ratushnyak, Oct 26 2012

Keywords

• nonn

Comments

The subsequence of primes is A068145.

Crossrefs

Cf. A000312, A066846, A068145, A218346.