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A177988 Numbers n such that quartic curve y^2=x^4-n has integral points. 2
1, 7, 12, 15, 16, 17, 31, 32, 45, 49, 56, 60, 65, 71, 72, 77, 80, 81 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Complement to this sequence see A177989.

Numbers n such that quartic curve y^2=x^4+n has integral points. see A177986.

LINKS

Table of n, a(n) for n=1..18.

PROG

(MAGMA) IntegralQuarticPoints([1, 0, 0, 0, -81]);

CROSSREFS

Cf. A054504, A081121, A177986, A177987, A177988, A177989.

Sequence in context: A162194 A247954 A145310 * A072834 A138615 A210254

Adjacent sequences:  A177985 A177986 A177987 * A177989 A177990 A177991

KEYWORD

nonn

AUTHOR

Artur Jasinski, May 16 2010

STATUS

approved

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Last modified June 20 03:20 EDT 2021. Contains 345157 sequences. (Running on oeis4.)