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A309034 Numbers k for which rank of the elliptic curve y^2=x^3-k*x is 4. 5

%I #36 Sep 08 2022 08:46:21

%S 5037,5795,6497,7585,7672,8701,10001,10081,10605,14547,14637,15805,

%T 20091,20737,20760,21177,21571,22321,23137,24492,27812,30877,31595,

%U 33026,34241,36737,38412,38497,41021,41907,41922,42347,43036

%N Numbers k for which rank of the elliptic curve y^2=x^3-k*x is 4.

%o (PARI) for(k=1, 1e4, if(ellanalyticrank(ellinit([0, 0, 0, -k, 0]))[1]==4, print1(k", ")))

%o (Magma) for k in[1..10000] do if Rank(EllipticCurve([0,0,0,-k,0])) eq 4 then print k; end if; end for; // _Vaclav Kotesovec_, Jul 08 2019

%Y Cf. A002156 (rank 0), A002157 (rank 1). A309032 (rank 2), A309033 (rank 3), this sequence (rank 4), A309100 (rank 5).

%Y Cf. A060952, A309031.

%K nonn

%O 1,1

%A _Seiichi Manyama_, Jul 08 2019

%E a(29)-a(33) from _Seiichi Manyama_, Jul 09 2019

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Last modified August 1 10:18 EDT 2024. Contains 374816 sequences. (Running on oeis4.)