Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A005075
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A005075 Sum of squares of primes = 2 mod 3 dividing n. +0
1
0, 4, 0, 4, 25, 4, 0, 4, 0, 29, 121, 4, 0, 4, 25, 4, 289, 4, 0, 29, 0, 125, 529, 4, 25, 4, 0, 4, 841, 29, 0, 4, 121, 293, 25, 4, 0, 4, 0, 29, 1681, 4, 0, 125, 25, 533, 2209, 4, 0, 29, 289, 4, 2809, 4, 146, 4, 0, 845, 3481 (list; graph; listen)
OFFSET

1,2
FORMULA

Additive with a(p^e) = p^2 if p = 2 (mod 3), 0 otherwise.

CROSSREFS

Sequence in context: A058493 A112149 A087736 this_sequence A103638 A129821 A126836

Adjacent sequences: A005072 A005073 A005074 this_sequence A005076 A005077 A005078

KEYWORD

nonn

AUTHOR

njas

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

AT&T Labs Research

Legal Notice
© 2007 AT&T Knowledge Ventures. All Rights Reserved.