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A273219 Taxi-cab numbers (A001235) that are the sum of three positive cubes. 1
216027, 262656, 515375, 1092728, 1331064, 1533357, 1728216, 1845649, 2101248, 2515968, 2562112, 2622104, 2864288, 3511872, 3551112, 4033503, 4123000, 4511808, 4607064, 5004125, 5462424, 5832729, 6017193, 7091712, 7882245, 8491392, 8493039, 8494577, 8741824 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

A001235(158) = 10702783 = 7*13*337*349 is the least squarefree term of this sequence.

LINKS

Chai Wah Wu, Table of n, a(n) for n = 1..16254

EXAMPLE

216027 is a term because 216027 = 3^3 + 60^3 = 22^3 + 59^3 = 11^3 + 42^3 + 52^3.

262656 is a term because 262656 = 8^3 + 64^3 = 36^3 + 60^3 = 15^3 + 42^3 + 57^3.

515375 is a term because 515375 = 15^3 + 80^3 = 54^3 + 71^3 = 30^3 + 62^3 + 63^3.

CROSSREFS

Cf. A001235, A003072.

Sequence in context: A118875 A205924 A203730 * A251804 A184668 A077640

Adjacent sequences:  A273216 A273217 A273218 * A273220 A273221 A273222

KEYWORD

nonn

AUTHOR

Altug Alkan, May 18 2016

STATUS

approved

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Last modified October 16 09:29 EDT 2019. Contains 328056 sequences. (Running on oeis4.)