They seem rapidly to follow an invisible leader over the plains, suddenly forming themselves into pairs, fours, eights, sixteens, until the entire herd thus form one line, like an army of soldiers marching.
"The Human Side of Animals"
Royal Dixon
Then quickly all the laughter stopped; the green feet came twinkling sixteens to the dozens, so as to get round the post before him and away.
"The Field of Clover"
Laurence Housman
Cuchulainn overthrew two sixteens of warriors of them again by the water.
"The Cattle-Raid of Cualnge (Tain Bo Cualnge)"
Unknown