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 A270296 #22 Feb 04 2021 18:15:21 %S A270296 20,40,80,100,140,160,200,220,260,280,320,340,380,400,440,460,500,520, %T A270296 560,580,620,640,680,700,740,760,800,820,860,880,920,940,980,1000, %U A270296 1040,1060,1100,1120,1160,1180,1220,1240,1280,1300,1340,1360,1400,1420,1460 %N A270296 Numbers which are representable as a sum of five but no fewer consecutive nonnegative integers. %H A270296 Ray Chandler, <a href="/A270296/b270296.txt">Table of n, a(n) for n = 1..10000</a> %F A270296 A163169(a(n)) = 5. - _Ray Chandler_, Mar 22 2016 %F A270296 a(n) = 20*A001651(n). - _Hugo Pfoertner_, Feb 04 2021 %e A270296 15 = 1 + 2 + 3 + 4 + 5 = 7 + 8 (not in sequence); %e A270296 20 = 2 + 3 + 4 + 5 + 6; %e A270296 40 = 6 + 7 + 8 + 9 + 10; %e A270296 80 = 14 + 15 + 16 + 17 + 18. %Y A270296 Cf. A001651, A138591, A270297, A270298, A270299, A270300, A270301, A270302, A270303. %K A270296 nonn %O A270296 1,1 %A A270296 _Martin Renner_, Mar 14 2016