a(n) is the smallest number that is the sum of n positive 4th powers in four ways.

Terms

a(0) =5978882a(1) =236674a(2) =20995a(3) =6626a(4) =2925a(5) =2925a(6) =2854a(7) =1620a(8) =1621a(9) =777a(10) =778a(11) =779a(12) =780a(13) =781a(14) =782a(15) =528a(16) =529a(17) =515a(18) =516a(19) =517a(20) =518a(21) =519a(22) =520a(23) =521a(24) =522a(25) =523a(26) =524a(27) =525a(28) =526a(29) =512