1,1

See A031507 for the smallest n such that rank of the elliptic curve y^2=x^3+n is some given k.

Table of n, a(n) for n=1..8.

J. Gebel, Integer points on Mordell curves [Cached copy, after the original web site tnt.math.se.tmu.ac.jp was shut down in 2017]

Cf. A002151 (rank 0), A002153 (rank 1), A002155 (rank 2), A102833 (rank 3), A031507.

Sequence in context: A293106 A221360 A106720 * A206606 A089159 A045051

Adjacent sequences: A179121 A179122 A179123 * A179125 A179126 A179127

nonn

Artur Jasinski, Jun 30 2010

approved