|
|
A177786
|
|
Positive numbers which have more than two representations (m,s) as a difference s^2-m^5, m>=1, s>0.
|
|
0
|
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
This sequence is a subsequence of A177770.
Contains also 10993 and 53668, not necessarily as the next terms. [R. J. Mathar, May 23 2010]
|
|
LINKS
|
|
|
EXAMPLE
|
a(1)=1828 = 98^2-6^5 = 186^2-8^5 = 90298^2-96^5.
a(2)=3332 = 58^2-2^5 = 66^2-4^5 = 190^2-8^5.
a(3)=4100 = 85^2-5^5 = 1026^2-16^5 = 1790^2-20^5.
|
|
CROSSREFS
|
|
|
KEYWORD
|
more,nonn,bref
|
|
AUTHOR
|
|
|
EXTENSIONS
|
Added constraint s>0 to the definition - R. J. Mathar, May 23 2010
|
|
STATUS
|
approved
|
|
|
|