A177987 Numbers n such that quartic equation y^2=x^4+n has no solution.

2, 5, 6, 7, 10, 11, 12, 13, 14, 17, 18, 21, 22, 23, 26, 27, 29, 30, 31, 32, 34, 37, 38, 39, 41, 42, 43, 44, 45, 46, 47, 50, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 66, 67, 69, 70, 71, 72, 74, 75, 76, 77, 78, 79, 82, 83, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98

Offset

1,1

Comments

Complement to this sequence see A177986.

Links

Table of n, a(n) for n=1..71.

Example

104 does not belong to this sequence because 27^2 = 5^4 + 104.

Crossrefs

Cf. A054504, A081121.

Sequence in context: A057894 A057694 A049303 * A047217 A219650 A379063

Adjacent sequences: A177984 A177985 A177986 * A177988 A177989 A177990

Keyword

nonn

Author

Artur Jasinski, May 16 2010

Status

approved