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 A249487 #18 Feb 14 2021 13:01:28 %S A249487 2,34,42,44,198,202,646,694,840,842,856,866,876,878,880,898,902,916, %T A249487 1038,1042,1044,1046,1048,1052,1068,1076,1090,1140,1582,1588,1598, %U A249487 1684,1692,1726,1748,1750,2292,2304,2336,2478,2556,2558,2754,2762,2766,2772,2774 %N A249487 Numbers k such that the infinitary summatory Liouville function L*(k) = Sum{i=1..k} A064179(i) is zero and L*(k-1)*L*(k+1)=-1. %C A249487 Analog of A249482 in Fermi-Dirac arithmetic, based on distinct terms of A050376 as "primes". Surprisingly there is a giant contrast between this sequence and A249482. %C A249487 For k >= 1, %C A249487 in interval [a(2k-1), a(2k)], L(n) <= 0, %C A249487 in interval [a(2k), a(2k+1)], L(n) >= 0. %C A249487 In particular, for k=1, in interval [2, 34], L(n) <= 0. %H A249487 Amiram Eldar, <a href="/A249487/b249487.txt">Table of n, a(n) for n = 1..10000</a> %Y A249487 Cf. A064179, A050376, A249482. %K A249487 nonn %O A249487 1,1 %A A249487 _Vladimir Shevelev_, Jan 13 2015 %E A249487 More terms from _Peter J. C. Moses_, Jan 13 2015