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 A382798 #11 Apr 06 2025 15:01:34 %S A382798 2,4,6,8,16,18,26,28,36,38,48,62,72,82,102,106,114,126,138,148,180, %T A382798 182,206,236,238,258,260,282,316,324,356,358,370,382,390,400,402,412, %U A382798 414,434,456,502,522,524,544,546,566,568,602,612,624,646,668,688,690 %N A382798 Even Ulam numbers. %H A382798 Shyam Sunder Gupta, <a href="/A382798/b382798.txt">Table of n, a(n) for n = 1..10160</a> %H A382798 Shyam Sunder Gupta, <a href="https://doi.org/10.1007/978-981-97-2465-9_18">Ulam Numbers</a>. In: Exploring the Beauty of Fascinating Numbers. Springer Praxis Books(). Springer, Singapore, (2025). %Y A382798 Intersection of A002858 and A005843. %K A382798 nonn %O A382798 1,1 %A A382798 _Shyam Sunder Gupta_, Apr 05 2025