Integers k such that k^2 can be written as the sum of three positive fourth powers.

Terms

a(0) =481a(1) =1924a(2) =4329a(3) =7696a(4) =12025a(5) =17316a(6) =23569a(7) =24961a(8) =28721a(9) =30784a(10) =38961a(11) =48100a(12) =58201a(13) =65441a(14) =69121a(15) =69264a(16) =81289a(17) =94276a(18) =99844a(19) =108225a(20) =113241a(21) =114884a(22) =123136a(23) =139009a(24) =155844a(25) =173641a(26) =192400a(27) =212121a(28) =224649a(29) =232804