Not the sum of three perfect powers (assuming 1, but not 0, is a perfect power).

A135367

Not the sum of three perfect powers (assuming 1, but not 0, is a perfect power).

Terms

    a(0) =1a(1) =2a(2) =4a(3) =5a(4) =7a(5) =8a(6) =15a(7) =23a(8) =31a(9) =87a(10) =111a(11) =119a(12) =167a(13) =335a(14) =1391a(15) =1455a(16) =1607a(17) =1679a(18) =1991a(19) =25887a(20) =26375

External references