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 A186659 #20 Feb 16 2025 08:33:14 %S A186659 1,6,83,1101,12813,135273,1242976,10072614,81753935,720313380, %T A186659 6785033130 %N A186659 Total number of positive integers below 10^n requiring 7 positive biquadrates in their representation as sum of biquadrates. %C A186659 A114322(n) + A186649(n) + A186651(n) + A186653(n) + A186655(n) + A186657(n) + a(n) + A186661(n) + A186663(n) + A186665(n) + A186667(n) + A186669(n) + A186671(n) + A186673(n) + A186675(n) + A186677(n) + A186680(n) + A186682(n) + A186684(n) = A002283(n). %H A186659 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/WaringsProblem.html">Waring's Problem.</a> %Y A186659 Cf. A003341, A186660. %K A186659 nonn,more %O A186659 1,2 %A A186659 _Martin Renner_, Feb 25 2011 %E A186659 a(5)-a(8) from _Lars Blomberg_, May 08 2011 %E A186659 a(9) from _Hiroaki Yamanouchi_, Oct 13 2014 %E A186659 a(10)-a(11) from _Giovanni Resta_, Apr 26 2016