A309144 Rank of elliptic curve y^2 = x^3 + (n^2 + 6*n -3)*x^2 - 16*n*x.

0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 0, 0, 1, 0, 0, 2, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 0, 0, 1, 0, 1, 1, 2, 0, 1, 0, 1, 0, 1, 2, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 2, 0, 1, 0, 0, 0, 2, 0, 1, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1

Offset

1,28

Links

Seiichi Manyama, Table of n, a(n) for n = 1..1000

Allan J. MacLeod, Knight's Problem

Prog

(PARI) {a(n) = ellanalyticrank(ellinit([0, n^2+6*n-3, 0, -16*n, 0]))[1]}

Crossrefs

Cf. A102535.

Sequence in context: A160380 A122433 A056977 * A085425 A355685 A244250

Adjacent sequences: A309141 A309142 A309143 * A309145 A309146 A309147

Keyword

nonn

Author

Seiichi Manyama, Jul 14 2019

Status

approved