Shiva Purana
शोषदाहप्लवान्कुर्याद्रेचकादि क्रमेण तु ॥ सषोडशचतुष्षष्टिद्वात्रिंशद्गणनायुतैः ॥ ५४ ॥
For sixteen, sixty-four and thirty-two seconds he shall perform Pūraka, Kumbhaka and Recaka through Śoṣa Dāha and Plava.
english translation
zoSadAhaplavAnkuryAdrecakAdi krameNa tu ॥ saSoDazacatuSSaSTidvAtriMzadgaNanAyutaiH ॥ 54 ॥
hk transliteration by Sanscript