13/5

Interval information

Ratio	13/5
Factorization	5-1 × 13
Monzo	[0 0 -1 0 0 1⟩
Size in cents	1654.214¢
Name	tridecimal (sub-)eleventh
Color name	3og11, thogu 11th
FJS name	[math]\displaystyle{ \text{d11}^{13}_{5} }[/math]
Tenney norm (log2 nd)	6.02237
Weil norm (log2 max(n, d))	7.40088
Wilson norm (sopfr(nd))	18
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13/5 is the tridecimal (sub-)eleventh, the ratio between the 5th and 13th harmonics; one octave above 13/10.

Due to it falling into an interseptimal region between the tenth and the eleventh, one could call a "semitwentieth".