Only problems, not solutions!

TL;DR: A brief description of the author's database of integer sequences, now over 35 years old, together with a selection of a few of the most interesting sequences in the table is given in this article.

TL;DR: Neutrosophic emergences and incidences in communication and information, published in Germany/Saarbrucken: LAP LAMBERT Academic Publishing in 2013, is a book that constitutes a new trend, a new approach in the science of logic, philosophy, communication theory, information as mentioned in this paper.

TL;DR: Neutrosophic emergences and incidences in communication and information, published in Germany/Saarbrucken: LAP LAMBERT Academic Publishing in 2013, is a book that constitutes a new trend, a new approach in the science of logic, philosophy, communication theory, information, an approached and exemplification that has no mathematical foundation.

TL;DR: Over 300 sequences and many unsolved problems and conjectures related to them are presented herein together with theorems corollaries, formulae, examples, mathematical criteria, etc.

TL;DR: In this article, a function L which can generalize some theorems from Numbers Theory obtained by Wilson, Fermat, Euler, Gauss, Lagrange, Leibnitz, Moser, Sierpinski, and others is defined.

TL;DR: In this article, it was shown that if u > uo(k), then u(u + 1) always contains a prime factor greater than k, thus f(k) can be determined in a finite number of steps and an explicit bound has been given by Lehmer (1964) for the number of necessary steps.