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 A194128 #13 Oct 21 2019 11:24:18 %S A194128 3,11,17,521,647,1327,9437,14153,16141,16831,17299,18013,21839,24029, %T A194128 28429,30293,31247,32213,35201,36929,37991,42013,46643,51481,55259, %U A194128 61837,65951,67349,70663,72109,78553,89017,90647,91193 %N A194128 (Partial sums of the squarefree integers) that are prime. %C A194128 Select from the partial sums of the squarefree integers those partial sums that are prime. %H A194128 Amiram Eldar, <a href="/A194128/b194128.txt">Table of n, a(n) for n = 1..10000</a> %t A194128 Select[ Accumulate@ Select[ Range@ 550, SquareFreeQ], PrimeQ] %Y A194128 Cf. A005117, A173143. %K A194128 easy,nonn %O A194128 1,1 %A A194128 _Robert G. Wilson v_, Aug 15 2011