|
Search: id:A016078
|
|
|
| A016078 |
|
Smallest number that is sum of 2 positive n-th powers in 2 different ways. |
|
+0
2
|
| |
|
|
OFFSET
|
1,1
|
|
|
REFERENCES
|
R. Alter, Computations and generalizations on a remark of Ramanujan, pp. 182-196 of "Analytic Number Theory (Philadelphia, 1980)", ed. M. I. Knopp, Lect. Notes Math., Vol. 899, 1981.
|
|
EXAMPLE
|
4=1^1+3^1=2^1+2^1, 50=1^2+7^2=5^2+5^2, 1729=1^3+12^3=9^3+10^3, etc.
|
|
CROSSREFS
|
Cf. A046881.
Sequence in context: A123356 A139087 A026865 this_sequence A122464 A048995 A000516
Adjacent sequences: A016075 A016076 A016077 this_sequence A016079 A016080 A016081
|
|
KEYWORD
|
nonn,nice,hard
|
|
AUTHOR
|
Robert G. Wilson v (rgwv(AT)rgwv.com)
|
|
|
Search completed in 0.002 seconds
|
