A046041 Numbers (not of the form 9n+-4) that were conjectured not to be the sum of 3 positive or negative cubes. However, further research suggests that this sequence is in fact empty.

33, 42, 52, 74, 110, 114, 156, 165, 195, 290, 318, 366, 390, 420, 444, 452, 478, 501, 530, 534, 564, 579, 588, 600, 606, 609, 618, 627, 633, 732, 735, 758, 767, 786, 789, 795, 830, 834, 861, 894, 903, 906, 912, 921, 933, 948, 964, 969, 975

Offset

1,1

Comments

This sequence is incorrect. It is left in the database in case there are references or links to it.

References

Elena Deza and Michel Marie Deza, Figurate numbers, World Scientific Publishing (2012), page 306.

R. K. Guy, Unsolved Problems in Number Theory, D5.

Links

Table of n, a(n) for n=1..49.

Hisanori Mishima, Solutions of n=x^3+y^3+z^3

Eric Weisstein's World of Mathematics, Cubic Number.

Example

30 is not in the sequence because (-283059965)^3 + (-2218888517)^3 + 2220422932^3 = 30.

Crossrefs

Cf. A003072.

Sequence in context: A034070 A168311 A045241 * A140151 A196579 A121993

Adjacent sequences: A046038 A046039 A046040 * A046042 A046043 A046044

Keyword

dead

Status

approved