Ekuttarika

Vinayapiṭaka · Parivāra · Vol. 8 · Section 1006

[1006] The ones, the twos, and the threes, the fours and fives, the sixes, sevens, eights, and nines, and the tens and elevens— the stainless Groups Increasing by One (ekuttarika) were taught by the Great Hero, whose Dhamma is known, the Such One (tādī), for the welfare of all beings. Questions and Answers on the Uposatha and So Forth (Uposathādipucchāvissajjanā)

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.