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A219783
Smallest integer expressible as x^3 + 2*y^3 (x, y > 0) in exactly n ways.
1
3, 1459, 314953199, 575012796875
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OFFSET
1,1
COMMENTS
a(5) > 10^17. -
Donovan Johnson
, Nov 29 2012
LINKS
Table of n, a(n) for n=1..4.
EXAMPLE
3: (x, y) = (1, 1)
1459: (x,y) = (1,9), (11,4)
314953199: (x,y) = (121, 539), (463, 476), (649, 275)
575012796875: (x, y) = (275, 6600), (6413, 5379), (7225, 4625), (8195, 2310)
CROSSREFS
Cf.
A219722
,
A219725
,
A219726
,
A219728
.
Sequence in context:
A060307
A119111
A233195
*
A264427
A285656
A239503
Adjacent sequences:
A219780
A219781
A219782
*
A219784
A219785
A219786
KEYWORD
nonn
,
hard
,
more
AUTHOR
Zak Seidov
, Nov 27 2012
STATUS
approved
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Last modified March 28 05:01 EDT 2024. Contains 371235 sequences. (Running on oeis4.)