

A034012


Positive integers k satisfying y^2 = x^5  k where x^5 and y^2 are not both divisible by 2^10 and k = 2^(2*m)*d with d a positive squarefree integer d = 7 (mod 8) such that the class number of Q(sqrt(d)) is not divisible by 5.


3




OFFSET

1,2


REFERENCES

Michael Stoll, On the arithmetic of curves y^2=x^l+A and their Jacobians, J. Reine Angew. Math. 501 (1998), 171189, see p. 179.


LINKS

Table of n, a(n) for n=1..9.


CROSSREFS

Cf. A034011, A034013, A034014.
Sequence in context: A070574 A249612 A260560 * A086121 A030402 A303813
Adjacent sequences: A034009 A034010 A034011 * A034013 A034014 A034015


KEYWORD

nonn,fini,full


AUTHOR

N. J. A. Sloane


EXTENSIONS

Title improved by Sean A. Irvine, Jul 29 2020


STATUS

approved



