Random unfriendly seating arrangement in a dining table

Hua-Huai Chern, Hsien-Kuei Hwang and Tsung-Hsi Tsai, Random unfriendly seating arrangement in a dining table, Advances in Applied Mathematics, 65 (2015), 38-64, 2015. pdf (418K; 24 pages) arXiv:1406.0614