Cuboids that fit in square rings from A288486 obtaining a fifth power.

Terms

a(0) =1a(1) =8a(2) =75a(3) =400a(4) =1445a(5) =4056a(6) =9583a(7) =20000a(8) =38025a(9) =67240a(10) =112211a(11) =178608a(12) =273325a(13) =404600a(14) =582135a(15) =817216a(16) =1122833a(17) =1513800a(18) =2006875a(19) =2620880a(20) =3376821a(21) =4298008a(22) =5410175a(23) =6741600a(24) =8323225a(25) =10188776a(26) =12374883a(27) =14921200a(28) =17870525a(29) =21268920