unit for information

Dear FISers:

Please help me to correct/complete the following table for the unit
of information recording (number or coding) systems:

No. of notation full name e.g.
elements
2 bit binary digit or binary unit 0,1
e nat natural digit or natural unit -
3
4 GCAT (DNA)
5
6
7
8
9
10 det? decimal digit or decimal unit, 0-9
16
20 Amino Acids
32
64
128
256 byte, or 256t? a,b,..
10000 10000t? Chinese characters
n nt?

Thanks!

Shu-Kun

--
Dr. Shu-Kun Lin
Molecular Diversity Preservation International (MDPI)
Matthaeusstrasse 11, CH-4057 Basel, Switzerland
Tel. +41 79 322 3379, fax +41 61 302 8918
e-mail: lin@mdpi.org
http://www.mdpi.org/lin