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 A379344 #6 Dec 21 2024 15:26:13
%S A379344 3,31,310,15055,30433,318914,1378856,41139929,29628346,706390476,
%T A379344 5330866189,17573061167,227644494516,912323845104,3312744735567,
%U A379344 6366920047986,69033389180772,89835379146224,45938747179900,564448183072697,6856082910702485,19187647510345764511,56226662050090628,357824287346707561,139924756071743686
%N A379344 a(n) is the sum of all numbers k such that the greatest prime factor of k^2 - 1 is prime(n).
%C A379344 See A175607 and A223701 for additional information.
%F A379344 a(n) = Sum_{i>=1} A223701(n,i).
%Y A379344 Row sums of A223701.
%Y A379344 Cf. A175607.
%K A379344 nonn
%O A379344 1,1
%A A379344 _Andrew Howroyd_, Dec 21 2024