If decimal expansion of n is ab...d, a(n) = a^a + b^b + ... + d^d (ignoring any 0's).

Terms

a(0) =0a(1) =1a(2) =4a(3) =27a(4) =256a(5) =3125a(6) =46656a(7) =823543a(8) =16777216a(9) =387420489a(10) =1a(11) =2a(12) =5a(13) =28a(14) =257a(15) =3126a(16) =46657a(17) =823544a(18) =16777217a(19) =387420490a(20) =4a(21) =5a(22) =8a(23) =31a(24) =260a(25) =3129a(26) =46660a(27) =823547a(28) =16777220a(29) =387420493