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A219784 Integers expressible as x^3 + 2*y^3 (x, y > 0) exactly in three ways. 0
314953199, 432015625, 924667442, 1664304379, 1953968750, 2519625592, 3456125000, 4600102375, 7397339536, 8503736373, 11664421875, 13314435032, 15631750000, 20157004736, 24966020934, 27649000000, 36800819000, 38000696086, 39369149875, 44936218233, 52757156250, 54001953125, 59178716288 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Smallest integer with 4 ways: 575012796875:  {x, y} = {8195, 2310}, {7225, 4625}, {6413, 5379}, {275, 6600}.

LINKS

Table of n, a(n) for n=1..23.

EXAMPLE

314953199: (x,y) = (121, 539), (463, 476), (649, 275).

CROSSREFS

Cf. A219722, A219725, A219726, A219728, A219783.

Sequence in context: A015410 A189055 A221985 * A105005 A157789 A331445

Adjacent sequences:  A219781 A219782 A219783 * A219785 A219786 A219787

KEYWORD

nonn

AUTHOR

Zak Seidov, Nov 27 2012

STATUS

approved

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Last modified June 28 19:10 EDT 2022. Contains 354907 sequences. (Running on oeis4.)