The On-Line Encyclopedia of Integer Sequences
The On-Line Encyclopedia of Integer Sequences
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DOI：
10.37236/1194
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发表时间：
2003-12
期刊：
影响因子：
--
通讯作者：
N. Sloane
中科院分区：
文献类型：
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作者：
N. Sloane
在线整数序列百科全书（或OEIS）是一个包含约130000个数字序列的数据库。它可在网上免费查阅（http：//www.research.att.com/sequences/），并得到广泛使用。有几种方式，它有利于研究：1它作为一个字典，告诉用户什么是已知的特定序列。有数以百计的报纸感谢OEIS以这种方式提供的帮助。1相关的Sequence Fans邮件列表是一个全球网络，它已经发展成为解决新问题的强大机器。[1]作为新定理的直接来源，当一个序列在两个不同的上下文中出现时。1作为新研究的来源，当人们在OEIS中看到一个迫切需要分析的序列时。OEIS的40年历史概括了现代计算的故事，从穿孔卡到互联网。演讲将用大量的例子来说明，强调在过去几个月里出现的新序列。许多开放的问题将被提及。由于书籍和期刊数量众多，志愿者在维护数据库方面发挥着重要作用。如果你在一本书、杂志或网站上看到一个有趣的数字序列，请把它和参考资料发给OEIS。(You不需要是序列的作者才能做到这一点。）有一个网站可以发送“评论”或“新序列”。在过去的一年里，OEIS增加了几个新功能。由于Russ考克斯的工作，搜索现在以高速进行，并由于Debby Swayne的工作，有一个按钮，显示每个序列的图。最后，一个“听”按钮使人们能够听到乐器演奏的序列（尝试Recamaan的序列A005132！）。
The On-Line Encyclopedia of Integer Sequences (or OEIS) is a database of some 130000 number sequences. It is freely available on the Web (http://www.research.att.com/~njas/sequences/) and is widely used. There are several ways in which it benefits research: 1 It serves as a dictionary, to tell the user what is known about a particular sequence. There are hundreds of papers which thank the OEIS for assistance in this way. 1 The associated Sequence Fans mailing list is a worldwide network which has evolved into a powerful machine for tackling new problems. 1 As a direct source of new theorems, when a sequence arises in two different contexts. 1 As a source of new research, when one sees a sequence in the OEIS that cries out to be analyzed. The 40-year history of the OEIS recapitulates the story of modern computing, from punched cards to the internet. The talk will be illustrated with numerous examples, emphasizing new sequences that have arrived in the past few months. Many open problems will be mentioned. Because of the profusion of books and journals, volunteers play an important role in maintaining the database. If you come across an interesting number sequence in a book, journal or web site, please send it and the reference to the OEIS. (You do not need to be the author of the sequence to do this.) There is a web site for sending in "Comments" or "New sequences". Several new features have been added to the OEIS in the past year. Thanks to the work of Russ Cox, searches are now performed at high speed, and thanks to the work of Debby Swayne, there is a button which displays plots of each sequence. Finally, a "listen" button enables one to hear the sequence played on a musical instrument (try Recamaan's sequence A005132!).