Numbers k for which the alternating sum of the digits of k^k is +-1.

Terms

a(0) =1a(1) =5a(2) =10a(3) =20a(4) =21a(5) =43a(6) =56a(7) =78a(8) =80a(9) =100a(10) =131a(11) =160a(12) =170a(13) =215a(14) =230a(15) =300a(16) =355a(17) =485a(18) =505a(19) =540a(20) =692a(21) =824a(22) =1000a(23) =1055a(24) =1165a(25) =1335a(26) =1340a(27) =1429a(28) =1453a(29) =1505