6 citations · 16 across the 8 of their papers we have counts for
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math.NT2019★ 6 cited
Sums of squares of Tetranacci numbers: A generating function approach
Helmut Prodinger, Sarah J. Selkirk
It is demonstrated how an explicit expression of the (partial) sum of Tetranacci numbers can be found and proved using generating functions and the Hadamard product. We also provid…
math.CO2019
On two subclasses of Motzkin paths and their relation to ternary trees
Helmut Prodinger, Sarah J. Selkirk, Stephan Wagner
Two subclasses of Motzkin paths, S-Motzkin and T-Motzkin paths, are introduced. We provide bijections between S-Motzkin paths and ternary trees, S-Motzkin paths and non-crossing tr…