This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A003349 #36 Dec 12 2022 03:15:09 %S A003349 4,35,66,97,128,246,277,308,339,488,519,550,730,761,972,1027,1058, %T A003349 1089,1120,1269,1300,1331,1511,1542,1753,2050,2081,2112,2292,2323, %U A003349 2534,3073,3104,3128,3159,3190,3221,3315,3370,3401,3432,3612,3643,3854,4096,4151,4182,4213 %N A003349 Numbers that are the sum of 4 positive 5th powers. %H A003349 David A. Corneth, <a href="/A003349/b003349.txt">Table of n, a(n) for n = 1..10000</a> (first 1000 terms from T. D. Noe) %e A003349 From _David A. Corneth_, Aug 03 2020: (Start) %e A003349 670593 is in the sequence as 670593 = 1^5 + 8^5 + 10^5 + 14^5. %e A003349 862512 is in the sequence as 862512 = 7^5 + 9^5 + 12^5 + 14^5. %e A003349 1892695 is in the sequence as 1892695 = 1^5 + 1^5 + 5^5 + 18^5. (End) %t A003349 f@n_:= Select[Range@n,IntegerPartitions[#,{4},Range@(n^(1/5))^5] != {} &]; f@10000 (* _Hans Rudolf Widmer_, Dec 04 2022 *) %Y A003349 Cf. A000584, A003338, A003348, A003350, A344642, A344644. %K A003349 nonn,easy %O A003349 1,1 %A A003349 _N. J. A. Sloane_ %E A003349 Incorrect program removed by _David A. Corneth_, Aug 03 2020