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Tangent and Bernoulli numbers related to Motzkin and Catalan numbers by means of numerical triangles
Autor:
Arregui, Jose Luis
It is shown that Bernoulli numbers and tangent numbers (the derivatives of the tangent function at zero) can be obtained by means of easily defined triangles of numbers in several ways, some of them very similar to the Catalan triangle and a Motzkin-
Externí odkaz:
http://arxiv.org/abs/math/0109108
Publikováno v:
The American Mathematical Monthly, 2003 May 01. 110(5), 443-444.
Externí odkaz:
https://www.jstor.org/stable/3647842
Autor:
Arregui, Jose Luis, Blasco, Oscar
Publikováno v:
Quaestiones Mathematicae; December 2003, Vol. 26 Issue: 4 p441-452, 12p