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Solutions x of the equation A064380(x)-A000010(x)=1 in integers x>=2.
4

%I #13 Sep 14 2019 14:58:10

%S 4,6,10,15,35,77,91,143,187,209,221,247,299,323,391,437,493,527,551,

%T 589,667,703,713,851,899,943,989,1073,1147,1189,1247,1271,1333,1363,

%U 1457,1517,1537,1591,1643,1739,1763,1829,1891,1927,1961,2021,2173,2183,2257,2279

%N Solutions x of the equation A064380(x)-A000010(x)=1 in integers x>=2.

%C The defining equation has infinitely many solutions.

%C Equals {4, 6, 10} UNION A082663. - _Eric M. Schmidt_, Oct 04 2013

%D V. S. Shevelev, Multiplicative functions in the Fermi-Dirac arithmetic, Izvestia Vuzov of the North-Caucasus region, Nature sciences 4 (1996), 28-43.

%H Amiram Eldar, <a href="/A186777/b186777.txt">Table of n, a(n) for n = 1..10000</a>

%H Eric M. Schmidt, <a href="/A186777/a186777.txt">The Near Equivalence of A082663 and A186777</a>

%Y Cf. A000010, A064380, A082663, A176472, A176509.

%K nonn

%O 1,1

%A _Vladimir Shevelev_, Feb 26 2011

%E More terms from _Amiram Eldar_, Sep 14 2019