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 A018936 #13 Sep 30 2023 09:20:21 %S A018936 1,25,49,81,100,169,196,289,361,529,529,900,900,1156,1444,1681,2025, %T A018936 2304,2704,3481,3600,4096,4624,4900,5625,6889,7225,8281,9409,10404, %U A018936 11236,11881,12996,14400,15129,16900,18769,19600,21316,23104,24964,25921,27889 %N A018936 a(n) is the smallest square that is the sum of n distinct positive squares. %F A018936 a(n) = A018935(n)^2. - _Hugo Pfoertner_, Sep 30 2023 %e A018936 a(3) = 49 = 36 + 9 + 4 is the smallest square which is the sum of three distinct positive squares. %Y A018936 Cf. A018935, A018937. %K A018936 nonn %O A018936 1,2 %A A018936 _N. J. A. Sloane_ %E A018936 Corrected and extended by _David W. Wilson_ %E A018936 Name simplified by _Jon E. Schoenfield_, Sep 29 2023