शम्याद्वयं ततस्तेषु उद्बद्धः कथितो बुधैः । व्युदस्य युग्मतो ये च पञ्चताला भवन्ति हि ॥ २३॥
In these, when two Śamyās are followed in succession, it is known as Udbaddha according to the wise. And excluding that, the remaining five are considered to be the paired (Yugmato) types of Tālas.
english translation