OFFSET
13,3
COMMENTS
1.081 202 338(24) * 10^12 C m^-3 according to CODATA 2010.
a(21) is 1, 2, 3, 4, 5 or 6.
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Ivan Panchenko, Jan 27 2015
STATUS
approved
