OFFSET
4,1
COMMENTS
This refers to Cu=29, Ar=47, Au=79, and Rg=111.
The first differences are 18, 18, 32, indicating that there is a row of Lanthanides between Au and Rg.
LINKS
Wikipedia, Periodic table
CROSSREFS
KEYWORD
nonn,fini,full,less
AUTHOR
Paul Curtz, May 02 2008
EXTENSIONS
Edited by R. J. Mathar, May 21 2009
STATUS
approved