Combinatorics

CombinatoricsbyMoshe Sipper
“Seventy-nine?!” cried Linda Ryan, Head of the Planetary Survey. “You're sitting here with a straight face, telling me the Takeinians have seventy-nine different sexes?”“Yes,” replied Mark Yang tersely and undauntedly. Head of the Contact Team, he was always terse and undaunted. But damn competent, thought Ryan. She knew he had much to do with the success of their mission. They'd already got to a point where they could carry on halting conversations with the Takeini...