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 A038347 #10 May 18 2020 03:44:10 %S A038347 3,10,21,40,63,94,137,184,243,310,381,460,543,646,753,880,1011,1150, %T A038347 1301,1464,1631,1810,2001,2200,2411,2634,2861,3100,3351,3614,3885, %U A038347 4168,4475,4786,5117,5464,5823,6190,6569,6952,7371,7802,8241,8684,9147,9614 %N A038347 Sum of first n primes of form 4k-1. %H A038347 Robert Israel, <a href="/A038347/b038347.txt">Table of n, a(n) for n = 1..10000</a> %p A038347 ListTools:-PartialSums(select(isprime, [seq(i,i=3..1000,4)])); # _Robert Israel_, Feb 27 2017 %t A038347 Accumulate[Select[Prime[Range[250]],Mod[#,4]==3&]] (* _Harvey P. Dale_, Jul 04 2013 *) %Y A038347 Cf. A002145, A038346, A078586. %K A038347 easy,nonn %O A038347 1,1 %A A038347 Den Roussel (DenRoussel(AT)webtv.net)