@article {KS13, title = {On Moessner{\textquoteright}s theorem}, journal = {American Mathematical Monthly}, volume = {120}, number = {2}, year = {2013}, pages = {131{\textendash}139}, abstract = {

Moessner{\textquoteright}s theorem describes a procedure for generating a sequence of n integer sequences that lead unexpectedly to the sequence of nth powers 1n, 2n, 3n, ... Paasche{\textquoteright}s theorem is a generalization of Moessner{\textquoteright}s; by varying the parameters of the procedure, one can obtain the sequence of factorials 1!, 2!, 3!, ... or the sequence of superfactorials 1!!, 2!!, 3!!, ... Long{\textquoteright}s theorem generalizes Moessner{\textquoteright}s in another direction, providing a procedure to generate the sequence a1n-1, (a+d)2n-1, (a+2d)3n-1, ... Proofs of these results in the literature are typically based on combinatorics of binomial coefficients or calculational scans. In this note we give a short and revealing algebraic proof of a general theorem that contains Moessner{\textquoteright}s, Paasche{\textquoteright}s, and Long{\textquoteright}s as special cases. We also prove a generalization that gives new Moessner-type theorems.

}, attachments = {https://haslab.uminho.pt/sites/default/files/xana/files/moessner.pdf}, author = {Dexter Kozen and Alexandra Silva} }