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.

A308337 Expansion of e.g.f. exp(-1 + Product_{k>=1} 1/(1 - x^k/k)).

Table of values

n a(n)
0 1
1 1
2 4
3 21
4 146
5 1210
6 11894
7 133000
8 1677668
9 23439684
10 359651232
11 6000427884
12 108157599120
13 2092493844480
14 43240336406136
15 950021322002904
16 22108068716440272
17 543048769028068944
18 14037848562783308160
19 380851191359082217488
20 10818262594065294568416

List of values

[1, 1, 4, 21, 146, 1210, 11894, 133000, 1677668, 23439684, 359651232, 6000427884, 108157599120, 2092493844480, 43240336406136, 950021322002904, 22108068716440272, 543048769028068944, 14037848562783308160, 380851191359082217488, 10818262594065294568416]

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

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