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 A287167 #5 Feb 16 2025 08:33:46 %S A287167 8,23,35,32,46,58,72,56,62,70,71,79,80,83,88,89,91,86,103,94,109,104, %T A287167 107,112,113,110,122,119,126,121,118,144,0,128,131,136,137,153,143, %U A287167 139,149,134,0,0,142,152,164,154 %N A287167 Smallest number with exactly n representations as a sum of 8 nonzero squares or 0 if no such number exists. %H A287167 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/SquareNumber.html">Square Number</a> %H A287167 <a href="/index/Su#ssq">Index entries for sequences related to sums of squares</a> %F A287167 A025432(a(n)) = n for a(n) > 0. %e A287167 a(1) = 8 because 8 is the smallest number with exactly 1 representation as a sum of 8 nonzero squares: 8 = 1^2 + 1^2 + 1^2 + 1^2 + 1^2 + 1^2 + 1^2 + 1^2; %e A287167 a(2) = 23 because 23 is the smallest number with exactly 2 representations as a sum of 8 nonzero squares: 23 = 1^2 + 1^2 + 1^2 + 1^2 + 1^2 + 1^2 + 1^2 + 4^2 = 1^2 + 1^2 + 1^2 + 2^2 + 2^2 + 2^2 + 2^2 + 2^2, etc. %Y A287167 Cf. A016032, A025414, A025416, A025432, A080654, A287165, A287166. %K A287167 nonn %O A287167 1,1 %A A287167 _Ilya Gutkovskiy_, May 20 2017