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 A344927 #6 Jul 31 2021 22:12:24 %S A344927 328118259,385202034,395613234,489597858,625839858,641398338, %T A344927 674511618,693239634,699598578,722302434,779889314,780278643, %U A344927 782999714,791204514,792005379,797405714,797935698,805299699,815120658,822938754,851527314,857962914,870861618 %N A344927 Numbers that are the sum of four fourth powers in exactly nine ways. %C A344927 Differs from A344926 at term 5 because 328118259 is a term because 328118259 = 2^4 + 77^4 + 109^4 + 111^4 = 8^4 + 79^4 + 93^4 + 121^4 = 18^4 + 79^4 + 97^4 + 119^4 = 21^4 + 77^4 + 98^4 + 119^4 = 27^4 + 77^4 + 94^4 + 121^4 = 34^4 + 77^4 + 89^4 + 123^4 = 46^4 + 57^4 + 103^4 + 119^4 = 49^4 + 77^4 + 77^4 + 126^4 = 61^4 + 66^4 + 77^4 + 127^4. %H A344927 David Consiglio, Jr., <a href="/A344927/b344927.txt">Table of n, a(n) for n = 1..64</a> %e A344927 328118259 is a term because 328118259 = 2^4 + 77^4 + 109^4 + 111^4 = 8^4 + 79^4 + 93^4 + 121^4 = 18^4 + 79^4 + 97^4 + 119^4 = 21^4 + 77^4 + 98^4 + 119^4 = 27^4 + 77^4 + 94^4 + 121^4 = 34^4 + 77^4 + 89^4 + 123^4 = 46^4 + 57^4 + 103^4 + 119^4 = 49^4 + 77^4 + 77^4 + 126^4 = 61^4 + 66^4 + 77^4 + 127^4. %o A344927 (Python) %o A344927 from itertools import combinations_with_replacement as cwr %o A344927 from collections import defaultdict %o A344927 keep = defaultdict(lambda: 0) %o A344927 power_terms = [x**4 for x in range(1, 1000)] %o A344927 for pos in cwr(power_terms, 4): %o A344927 tot = sum(pos) %o A344927 keep[tot] += 1 %o A344927 rets = sorted([k for k, v in keep.items() if v == 9]) %o A344927 for x in range(len(rets)): %o A344927 print(rets[x]) %Y A344927 Cf. A341892, A344751, A344925, A344926, A344929, A345154. %K A344927 nonn %O A344927 1,1 %A A344927 _David Consiglio, Jr._, Jun 02 2021