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

 

Logo

Annual appeal: Please make a donation to keep the OEIS running! Over 6000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A089453 Sums of squares of primitive roots of primes. 0
1, 4, 13, 34, 153, 210, 680, 703, 2207, 2233, 3250, 5106, 6709, 8036, 20162, 20372, 21944, 29213, 35222, 39420, 56020, 61937, 97192, 100104, 100748, 132253, 134070, 135340, 201592, 205867, 207258, 328597, 334706, 348810, 372716, 383600, 493564 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Terms were computed by Ed Pegg Jr; see link for related Mathematica code.

LINKS

Table of n, a(n) for n=1..37.

Ed Pegg Jr., The Moebius Function.

EXAMPLE

a(5) = 153 = 2^2 + 6^2 + 7^2 + 8^2 = sum of squares of primitive roots of prime(5)(=11).

For the first 10 primes the primitive roots are as follows:

{{1}, {2}, {2, 3}, {3, 5}, {2, 6, 7, 8}, {2, 6, 7, 11}, {3, 5, 6, 7, 10, 11, 12, 14}, {2, 3, 10, 13, 14, 15}, {5, 7, 10, 11, 14, 15, 17, 19, 20, 21}, {2, 3, 8, 10, 11, 14, 15, 18, 19, 21, 26, 27}}.

CROSSREFS

Sequence in context: A212149 A208740 A127981 * A057159 A189588 A266357

Adjacent sequences:  A089450 A089451 A089452 * A089454 A089455 A089456

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Nov 03 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 13 19:20 EST 2017. Contains 295976 sequences.