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.

A005840 Expansion of (1-x)*e^x/(2-e^x).

Table of values

n a(n)
0 1
1 1
2 2
3 8
4 46
5 332
6 2874
7 29024
8 334982
9 4349492
10 62749906
11 995818760
12 17239953438
13 323335939292
14 6530652186218
15 141326092842416
16 3262247252671414
17 80009274870905732
18 2077721713464798210
19 56952857434896699992
20 1643312099715631960910

List of values

[1, 1, 2, 8, 46, 332, 2874, 29024, 334982, 4349492, 62749906, 995818760, 17239953438, 323335939292, 6530652186218, 141326092842416, 3262247252671414, 80009274870905732, 2077721713464798210, 56952857434896699992, 1643312099715631960910]

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

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