The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A273219 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A273219

Taxi-cab numbers (A001235) that are the sum of three positive cubes.
(history; published version)

#11 by N. J. A. Sloane at Tue May 24 23:56:30 EDT 2016

STATUS

reviewed

approved

#10 by G. C. Greubel at Tue May 24 23:06:04 EDT 2016

STATUS

proposed

reviewed

#9 by Chai Wah Wu at Tue May 24 22:07:25 EDT 2016

STATUS

editing

proposed

Discussion

Tue May 24

23:06

G. C. Greubel: C. W. Wu: no code?

#8 by Chai Wah Wu at Tue May 24 22:07:18 EDT 2016

LINKS

Chai Wah Wu, <a href="/A273219/b273219.txt">Table of n, a(n) for n = 1..16254</a>

STATUS

approved

editing

#7 by N. J. A. Sloane at Sun May 22 00:14:05 EDT 2016

STATUS

proposed

approved

#6 by Altug Alkan at Wed May 18 14:31:33 EDT 2016

STATUS

editing

proposed

#5 by Altug Alkan at Wed May 18 11:17:02 EDT 2016

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.

#4 by Altug Alkan at Wed May 18 11:00:14 EDT 2016

COMMENTS

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

#3 by Altug Alkan at Wed May 18 01:14:32 EDT 2016

CROSSREFS

Cf. A001235, A003072.

#2 by Altug Alkan at Wed May 18 01:13:15 EDT 2016

NAME

allocated for Altug AlkanTaxi-cab numbers (A001235) that are the sum of three positive cubes.

DATA

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

OFFSET

1,1

CROSSREFS

Cf. A001235.

KEYWORD

allocated

nonn

AUTHOR

Altug Alkan, May 18 2016

STATUS

approved

editing