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 A379291 #12 Aug 08 2025 07:05:26 %S A379291 2,4,6,16,18,20,27,29,38,48,50,64,66,68,71,84,106,108,113,117,119,130, %T A379291 133,139,161,171,173,177,179,183,205,209,214,216,224,226,273,277,281, %U A379291 284,289,303,310,312,316,318,364,384,386,388,392,396,398,431,437,441,458,460,462,464,468,476,500,504,506,508,549,553,559,563,565,585,589,594,599,603 %N A379291 Index where prime(n) first appears as a factor of a term in A379248. %C A379291 See A379248 for further details. %H A379291 Scott R. Shannon, <a href="/A379291/b379291.txt">Table of n, a(n) for n = 1..10000</a> %Y A379291 Cf. A379248, A379290, A379291, A379296, A064413, A064955. %K A379291 nonn %O A379291 1,1 %A A379291 _Scott R. Shannon_, Dec 20 2024