A combinatorial proof to Iliya Bluskov's proposed Problem 1751.
© 2007 Mathematical Association of America
Benjamin, A.T., & Carman, A. (2007). Solution to problem 1751, a combinatorial identity. Mathematics Magazine, 80(4): 309-310.
First published in Mathematics Magazine, vol. 80, no. 4 (October 2007), pp. 309-310, by The Mathematical Association of America.