login
A309162
Rank of elliptic curve y^2 = x * (x+1) * (x+n).
3
0, 0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 1, 0, 0, 1, 0, 0, 1, 2, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 1, 0, 1, 1, 0, 2, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 2, 1, 0, 2, 0, 1, 1, 0, 2, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0, 1, 1, 1
OFFSET
2,30
LINKS
PROG
(PARI) {a(n) = ellanalyticrank(ellinit([0, n+1, 0, n, 0]))[1]}
CROSSREFS
KEYWORD
nonn
AUTHOR
Seiichi Manyama, Jul 15 2019
STATUS
approved