A093193 Positive numbers of the form x^3 + 2y^3.

1, 2, 3, 6, 8, 10, 11, 15, 16, 17, 24, 25, 27, 29, 34, 43, 46, 47, 48, 53, 54, 55, 62, 64, 66, 71, 80, 81, 82, 88, 89, 93, 101, 106, 109, 118, 120, 123, 125, 127, 128, 129, 136, 141, 155, 162, 174, 179, 186, 192, 197, 200, 214, 215, 216, 218, 223, 232, 242, 249

Offset

1,2

Links

Harry J. Smith, Table of n, a(n) for n = 1..500

Example

63^3 + 2*(-50)^3 = 47, so 47 is in the sequence.

Prog

(PARI) tnf=thueinit(x^3+2); for(n=1, 300, v=thue(tnf, n); if(length(v), print1(n", ")))
(PARI) { tnf=thueinit(x^3+2); n=0; for(a=1, 5000, v=thue(tnf, a); if(length(v), n++; write("b093193.txt", n, " ", a); if (n>=500, break)); ); } \\ Harry J. Smith, Jun 20 2009

Crossrefs

Sequence in context: A285306 A047403 A286051 * A187750 A089422 A316571

Adjacent sequences: A093190 A093191 A093192 * A093194 A093195 A093196

Keyword

nonn

Author

Ralf Stephan, Apr 21 2004

Status

approved