A134220 Values n for which integer solutions of Mordell curve y^2=x^3+n have a single value of x (or equivalently of nonnegative y).

2, 3, 4, 5, 10, 16, 18, 19, 22, 25, 26, 27, 30, 31, 33, 35, 38, 40, 41, 43, 48, 49, 50, 52, 54, 55, 56, 71, 72, 76, 79, 81, 82, 91, 92, 94, 97, 98, 99, 105, 106, 107, 112, 117, 119, 120, 122, 125, 126, 127, 131, 132, 134, 136, 138, 142, 143, 144, 150, 151, 152, 154, 156

Offset

1,1

Comments

Union of A179145 and A179146.

Links

Table of n, a(n) for n=1..63.

Formula

Numbers n such that A134108(n) = Floor((A081119(n)+1)/2) = 1.

Crossrefs

Cf. A134108, A134221, A134222, A134223.

Sequence in context: A273732 A282032 A205962 * A179146 A099161 A369592

Adjacent sequences: A134217 A134218 A134219 * A134221 A134222 A134223

Keyword

nonn

Author

Artur Jasinski, Oct 14 2007, Oct 16 2007

Extensions

Edited and extended by Ray Chandler, Jul 12 2010

Status

approved