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 A186777 #13 Sep 14 2019 14:58:10
%S A186777 4,6,10,15,35,77,91,143,187,209,221,247,299,323,391,437,493,527,551,
%T A186777 589,667,703,713,851,899,943,989,1073,1147,1189,1247,1271,1333,1363,
%U A186777 1457,1517,1537,1591,1643,1739,1763,1829,1891,1927,1961,2021,2173,2183,2257,2279
%N A186777 Solutions x of the equation A064380(x)-A000010(x)=1 in integers x>=2.
%C A186777 The defining equation has infinitely many solutions.
%C A186777 Equals {4, 6, 10} UNION A082663. - _Eric M. Schmidt_, Oct 04 2013
%D A186777 V. S. Shevelev, Multiplicative functions in the Fermi-Dirac arithmetic, Izvestia Vuzov of the North-Caucasus region, Nature sciences 4 (1996), 28-43.
%H A186777 Amiram Eldar, <a href="/A186777/b186777.txt">Table of n, a(n) for n = 1..10000</a>
%H A186777 Eric M. Schmidt, <a href="/A186777/a186777.txt">The Near Equivalence of A082663 and A186777</a>
%Y A186777 Cf. A000010, A064380, A082663, A176472, A176509.
%K A186777 nonn
%O A186777 1,1
%A A186777 _Vladimir Shevelev_, Feb 26 2011
%E A186777 More terms from _Amiram Eldar_, Sep 14 2019