Mathematics is kept alive by the appearance of new, unsolved problems. This book provides a steady supply of easily understood, if not easily solved, problems that can be considered in varying depths by mathematicians at all levels of mathematical maturity. This new edition features lists of references to OEIS, Neal Sloane’s Online Encyclopedia of Integer Sequences, at the end of several of the sections.



![Algebraic Number Theory and Diophantine Analysis: Proceedings of the International Conference Held in Graz, Austria, August 30 to September 5, 1998 ([De Gruyter Proceedings in Mathematics])](http://ecx.images-amazon.com/images/I/41N7EKW31CL._BO01,224,223,220_SY120_SH20_PIsitb-sticker-arrow-dp,TopRight,12,-18_OU01_.jpg)






