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 A109770 #5 May 31 2014 17:38:08 %S A109770 2,9,32,85,182,333,560,871,1290,1831,2492,3319,4328,5521,6948,8567, %T A109770 10446,12589,15026,17767,20850,24311,28114,32325,36962,42013,47532, %U A109770 53539,60020,67017,74590,82751,91488,100829,110760,121387,132708,144757 %N A109770 Prime(1^2) + prime(2^2) + ... + prime(n^2). %F A109770 Cumulative sum of A011757. %e A109770 a(1) = 2 = prime(1^2). %e A109770 a(2) = 9 = 2 + 7 = prime(1^2) + prime(2^2). %e A109770 a(3) = 32 = 2 + 7 + 23 = prime(1^2) + prime(2^2) + prime(3^2). %e A109770 a(4) = 32 = 2 + 7 + 23 + 53 = prime(1^2) + prime(2^2) + prime(3^2) prime(4^2). %e A109770 a(x) = 2+7+23+53+97+151+227+311+419+541+661+827+1009+1193+1427+1619+1879+2143+2437+2741+3083+3461+3803+4211+4637+5051+5519+6007+6481+6997+7573+8161+8737+9341+9931+10627+11321+12049+12743+13499+14327 = 185326. %t A109770 Accumulate[Prime[Range[40]^2]] (* _Harvey P. Dale_, May 31 2014 *) %Y A109770 Cf. A011757, A109724. %K A109770 nonn %O A109770 1,1 %A A109770 _Jonathan Vos Post_, Aug 13 2005