login
This site is supported by donations to The OEIS Foundation.

 

Logo

Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 5000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A083502 Smallest k such that n*(n+k) + 1 is an n-th power. 1
1, 2, 18, 16, 1550, 2598, 299586, 812, 29118, 348678430, 67546215506, 20345040, 61054982557998, 281241170407078, 76861433640456450, 2690404, 128583032925805678334, 211927625850, 275941052631578947368402, 174339200 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Sequence is obviously infinite.

If the sequence is restricted to only prime n's, the sequence increases absolutely. See comment in A083503.

LINKS

Table of n, a(n) for n=1..20.

MATHEMATICA

Do[i = 2; While[k = (i^n - 1)/n - n; !IntegerQ[k], i++ ]; Print[k], {n, 1, 20}]

CROSSREFS

The i's in the above Mathematica coding, except for a(1), give A055670.

Cf. A083500, A083503.

Sequence in context: A132629 A174708 A144158 * A076378 A231502 A231864

Adjacent sequences:  A083499 A083500 A083501 * A083503 A083504 A083505

KEYWORD

nonn

AUTHOR

Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 03 2003

EXTENSIONS

Edited and extended by Robert G. Wilson v, May 11 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 | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified December 10 17:30 EST 2016. Contains 279005 sequences.