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 A356075 #26 Oct 08 2022 10:12:48
%S A356075 1,2,4,5,7,9,11,14,17,20,23,26,29,33,36,40,44,48,52,56,60,64,68,72,77,
%T A356075 81,85,90,94,99,104,108,113,118,122,127,132,137,142,147,152,157,162,
%U A356075 167,172,178,183,188,193,198,204,209,214,220,225,231,236,242,247,253,258
%N A356075 a(n) = floor(m), where li(m) = n and li is the logarithmic integral. We consider only real and positive m.
%C A356075 We use for li(x) and x > 1 the Cauchy principal value of Integral_{0..x} dt/log(t). This is stated to prevent confusion with Li(x), which is often defined so that Li(x) = li(x) - li(2).
%Y A356075 Cf. A052435, A089963, A096353, A223853, A337734, A337735.
%K A356075 nonn
%O A356075 1,2
%A A356075 _Thomas Scheuerle_, Jul 25 2022