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 A328118 #16 Mar 12 2024 09:53:25
%S A328118 6,7,8,12,30,31,32,33,34,35,36,37,38,39,40,42,43,60,61,62,63,64,65,66,
%T A328118 67,68,72,90,91,92,93,96,120,210,211,212,213,214,215,216,217,218,219,
%U A328118 220,221,222,223,224,225,226,227,228,229,230,231,232,234,235,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255
%N A328118 Numbers k for which A276086(k) <= A002620(k), where A276086 is the primorial base exp-function and A002620(k) = floor(k^2/4).
%H A328118 Antti Karttunen, <a href="/A328118/b328118.txt">Table of n, a(n) for n = 1..10000</a>
%o A328118 (PARI)
%o A328118 A276086(n) = { my(m=1, p=2); while(n, m *= (p^(n%p)); n = n\p; p = nextprime(1+p)); (m); };
%o A328118 A002620(n) = ((n^2)>>2);
%o A328118 isA328118(n) = (A276086(n) <= A002620(n));
%Y A328118 Cf. A002620, A276086, A328119 (complement).
%Y A328118 Subsequences: A328110 (after its two initial terms), A351228, A370127.
%K A328118 nonn
%O A328118 1,1
%A A328118 _Antti Karttunen_, Oct 08 2019