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 A100498 #6 Nov 15 2017 10:09:53 %S A100498 1,4,9,16,36,49,64,81,100,121,144,169,256,289,324,361,400,441,576,625, %T A100498 676,729,900,961,1024,1089,1296,1369,1444,1521,1764,1849,1936,2025, %U A100498 2304,2401,2500,2601,2916,3025,3136,3481,3600,3721,3844,4225,4356,4489 %N A100498 Smallest square that is equal to the sum of n distinct primes plus 1. %e A100498 a(1)=4 because 2^2=1+3; %e A100498 a(2)=9 because 3^2=1+3+5; %e A100498 a(3)=16 because 4^2=1+3+5+7. %Y A100498 Cf. A100555, A101771-A101775. %K A100498 nonn %O A100498 0,2 %A A100498 _Giovanni Teofilatto_, Dec 31 2004 %E A100498 Extended by _Ray Chandler_, Jan 10 2005