Kenneth EdwardsMahidol University2018-07-122018-07-122008-02-01Fibonacci Quarterly. Vol.46-47, No.1 (2008), 18-25001505172-s2.0-62649133352https://repository.li.mahidol.ac.th/handle/123456789/19419A tile composed of two pieces, which we refer to as a fence tile, is introduced to give the Tribonacci numbers a new combinatorial interpretation. The interpretation is used to construct a Pascal-like triangle and various identities concerning the triangle are proven. An intuitive proof of a general identity for the Tribonacci numbers in terms of sums of products of the binomial coefficients is given. A connection with sequence A120415 from Sloane's Encyclopedia of Integer Sequences is also made.Mahidol UniversityMathematicsArticleSCOPUS