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Noncongruent squarefree numbers n with A248395(n)/d(n) = -2, where d(n) = A000005(n).
10

%I #10 Oct 13 2019 04:17:37

%S 146,178,274,322,466,938,994,1002,1234,1394,1498,1714,1866,1906,2066,

%T 2098,2162,2194,2386,2578,2586,2786,2794,2962,3002,3034,3218,3266,

%U 3346,3658,3682,3914,3986,4090,4130,4594,4738,4786,4946,5170,5210,5234,5266,5402,5458

%N Noncongruent squarefree numbers n with A248395(n)/d(n) = -2, where d(n) = A000005(n).

%H J. B. Tunnell, <a href="http://dx.doi.org/10.1007/BF01389327">A classical Diophantine problem and modular forms of weight 3/2</a>, Invent. Math., 72 (1983), 323-334.

%Y Cf. A000005, A003273, A248394, A248395, A248397-A248406.

%K nonn

%O 1,1

%A _N. J. A. Sloane_, Oct 20 2014

%E More terms from _Amiram Eldar_, Oct 13 2019