Mayamatam 23.67

23.67

viṃśanmātrāvadhiryāvat pādaviṣkambhamiṣyate
pādoccārdhamadhiṣṭhānaṃ ṣaḍaṣṭāṃśonamevavā

up to twenty digits is desired as the diameter of the pillar. / The base is half the height of the pillar, or diminished by one-sixth or one-eighth;