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Table 2 List of sixteen numerical representation codes

From: Novel methodologies for spectral classification of exon and intron sequences

  Name Code
   C G A T
1 Integer Number 1 3 2 0
2 Single Galois Indicator 1 3 0 2
3 Paired Nucleotide Atomic Number 42 62 62 42
4 Atomic Number 58 78 70 66
5 Molecular Mass 110 150 134 125
6 EIIP 0.1340 0.0806 0.1260 0.1335
7 Paired Numeric -1 -1 1 1
8 Real Number 0.5 -0.5 -1.5 1.5
9 Complex Number -1-j -1+j 1+j 1-j
10 K-Twin-Pair Code -1 -1 j j
11 K-Bipolar-Pair Code I -1 1 j -j
12 K-Bipolar-Pair Code II -1 1 -j j
13 K-Quaternary Code I -1 -j 1 j
14 K-Quaternary Code II -1 -j j 1
15 K-Quaternary Code III -j -1 1 j
16 K-Quaternary Code IV -j -1 j 1
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