Table 2. Number of first-order nullomers found at each genomic element for kmer length up to 15 bp

From: Absent from DNA and protein: genomic characterization of nullomers and nullpeptides across functional categories and evolution

Length	Genome	Genic	CCDS	Exonic	Intronic	Promoter	5′UTR	3′UTR
10	0	0	0	0	0	0	0	0
11	0	0	0	0	0	0	0	0
12	0	0	210	4	0	0	1989	0
13	0	10	167,362	9400	56	5172	682,524	378,186
14	7874	39,268	13,963,269	2,542,806	93,417	1,727,683	31,484,149	16,310,842
15	2,502,376	6,141,882	292,832,416	104,630,926	9,288,682	77,629,000	447,490,130	267,624,098

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