|
| |
|
|
A131643
|
|
Cubes that are also sums of several consecutive cubes.
|
|
1
| |
|
|
216, 8000, 64000, 216000, 343000, 5832000, 35937000, 157464000, 1540798875, 3951805941, 22069810125, 23295638016, 58230605376, 170400029184, 4767078987000, 19814511816000, 241152896222784, 565199024832000, 731189187729000, 5399901725184000, 13389040129314816, 15517248640897024
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,1
|
|
|
COMMENTS
| All entries have the format A000537(j)-A000537(i-1) with 1<=i<j, for example (j,i)=(5,3), (14,11), (22,3), (30,6), (34,15), (69,6), (109,11). - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 14 2007
|
|
|
EXAMPLE
| 216 = 27+64+125.
|
|
|
MATHEMATICA
| Select[Union[ Flatten[Table[ Plus @@ Table[i^3, {i, k, j}], {k, 1000}, {j, k + 1, 1000}]]], # <= 1000^3 && IntegerQ[ #^(1/3)] &]
|
|
|
CROSSREFS
| Sequence in context: A128964 A096290 A017595 * A046234 A133052 A078204
Adjacent sequences: A131640 A131641 A131642 * A131644 A131645 A131646
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| Tanya Khovanova (tanyakh(AT)yahoo.com), Sep 08 2007
|
|
|
EXTENSIONS
| More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 14 2007
More terms from Donovan Johnson (donovan.johnson(AT)yahoo.com), Mar 09 2008
|
| |
|
|
