A309147 Least k such that the rank of the elliptic curve y^2 = x^3 + (k^2 + 6*k - 3)*x^2 - 16*k*x is n.

1, 4, 28, 356

Offset: 0

Author

Seiichi Manyama, Jul 14 2019

Keywords

• nonn
• more
• hard

Links

• Allan J. MacLeod, Knight's Problem

Crossrefs

Cf. A309144, A309146.

Programs

PARI

{a(n) = my(k=1); while(ellanalyticrank(ellinit([0, k^2+6*k-3, 0, -16*k, 0]))[1]<>n, k++); k}