Numbers that are the sum of two positive fourth powers in exactly one way.

Terms

a(0) =2a(1) =17a(2) =32a(3) =82a(4) =97a(5) =162a(6) =257a(7) =272a(8) =337a(9) =512a(10) =626a(11) =641a(12) =706a(13) =881a(14) =1250a(15) =1297a(16) =1312a(17) =1377a(18) =1552a(19) =1921a(20) =2402a(21) =2417a(22) =2482a(23) =2592a(24) =2657a(25) =3026a(26) =3697a(27) =4097a(28) =4112a(29) =4177