login
A318933
For the n-th number k = A318932(n) such that the Diophantine equation y^2 - k = x^3 has a solution, a(n) gives the number of solutions.
2
3, 1, 1, 1, 1, 4, 5, 1, 2, 2, 1, 8, 1, 1, 1, 4, 1, 1, 1, 2, 1, 1, 1, 1, 4, 3, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 3, 2, 3, 4, 2, 1, 1, 6, 1, 1, 4, 1, 1, 4, 1, 1, 1, 1, 1, 1, 6
OFFSET
1,1
COMMENTS
Hemer gives a(n) for all values of k <= 100.
LINKS
Joerg Arndt, Table of A318932(n) A318933(n), from Hemer's paper.
Ove Hemer, Notes on the diophantine equation y^2 - k = x^3, Arkiv för Matematik 3.1 (1954): 67-77.
CROSSREFS
Cf. A318932.
Sequence in context: A231147 A046534 A224489 * A361239 A140334 A131324
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Sep 12 2018
EXTENSIONS
Terms up to a(59) from Hemer's paper added by Joerg Arndt, Aug 28 2021
STATUS
approved