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Revision History for A274334

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A274334

Numbers n such that n^3 is the sum of 4 positive cubes.
(history; published version)

#25 by R. J. Mathar at Wed Aug 16 10:34:26 EDT 2023

STATUS

editing

approved

#24 by R. J. Mathar at Wed Aug 16 10:34:23 EDT 2023

LINKS

<a href="/index/Di#Diophantine">Index to sequences related to diophantine equations</a> (3,1,4)

STATUS

approved

editing

#23 by Charles R Greathouse IV at Sat Jan 14 16:35:09 EST 2017

STATUS

editing

approved

#22 by Charles R Greathouse IV at Sat Jan 14 16:34:58 EST 2017

COMMENTS

Conjecture: a(n) = n + 21 for all n > 50. - Charles R Greathouse IV, Jan 14 2017

STATUS

approved

editing

#21 by N. J. A. Sloane at Wed Jun 29 00:06:02 EDT 2016

STATUS

proposed

approved

#20 by Altug Alkan at Thu Jun 23 03:13:24 EDT 2016

STATUS

editing

proposed

#19 by Altug Alkan at Thu Jun 23 03:09:54 EDT 2016

DATA

7, 12, 13, 14, 18, 20, 21, 23, 24, 25, 26, 28, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 59, 60, 62, 63, 64, 65, 66, 67, 68, 69, 70, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93

#18 by Altug Alkan at Thu Jun 23 03:07:06 EDT 2016

EXAMPLE

7 is a term because 7^3 = 1^3 + 1^3 + 5^3 + 6^3.

#17 by Altug Alkan at Thu Jun 23 02:57:23 EDT 2016

DATA

#16 by Altug Alkan at Thu Jun 23 02:55:07 EDT 2016

CROSSREFS

Cf. A003327.