cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A012227 tanh(arctan(tanh(x)))=x-6/3!*x^3+176/5!*x^5-12016/7!*x^7...

Table of values

n a(n)
0 1
1 -6
2 176
3 -12016
4 1469696
5 -280971776
6 77198422016
7 -28793654081536
8 13988424620507136
9 -8578076577450295296
10 6478101995566379565056
11 -5906079803365219349037056
12 6394716233788355978540875776

List of values

[1, -6, 176, -12016, 1469696, -280971776, 77198422016, -28793654081536, 13988424620507136, -8578076577450295296, 6478101995566379565056, -5906079803365219349037056, 6394716233788355978540875776]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.