a(n) is a power of the sum of its digits.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =4a(5) =5a(6) =6a(7) =7a(8) =8a(9) =9a(10) =81a(11) =512a(12) =2401a(13) =4913a(14) =5832a(15) =17576a(16) =19683a(17) =234256a(18) =390625a(19) =614656a(20) =1679616a(21) =17210368a(22) =34012224a(23) =52521875a(24) =60466176a(25) =205962976a(26) =612220032a(27) =8303765625a(28) =10460353203a(29) =24794911296