login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A085320 First difference sequence of A003349, i.e., consecutive differences between those consecutive numbers which are sums of four 5th powers. 0
31, 31, 31, 31, 118, 31, 31, 31, 149, 31, 31, 180, 31, 211, 55, 31, 31, 31, 149, 31, 31, 180, 31, 211, 297, 31, 31, 180, 31, 211, 539, 31, 24, 31, 31, 31, 94, 55, 31, 31, 180, 31, 211, 242, 55, 31, 31, 180, 31, 211, 539, 31, 211, 781, 55, 31, 31, 180, 31, 211, 539, 31 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
35 = 1 + 1 + 1 + 32, 66 = 32 + 32 + 1 + 1, a(1) = 66 - 33 = 31.
Certain differences occur rather consequently like 31, 55, 113, 180, 207, 211, 539, etc.;
Distance of closest observed neighbors equals 2 like those of 33858 and 33856.
MATHEMATICA
{m=12, k=5, m^k}; t=Union[Flatten[Table[Table[Table[Table[w^k+q^k+t^k+u^k, {w, 1, m}], {q, 1, m}], {t, 1, m}], {u, 1, m}]]]; Length[t]; dt=Delete[ -RotateRight[t]+t, 1]; Sort[dt]
CROSSREFS
Sequence in context: A009734 A010870 A003892 * A140718 A040931 A022365
KEYWORD
nonn
AUTHOR
Labos Elemer, Jul 01 2003
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 25 10:01 EDT 2024. Contains 371967 sequences. (Running on oeis4.)