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.

A296439 Expansion of e.g.f. log(1 + arctanh(x))*exp(x).

Table of values

n a(n)
0 0
1 1
2 1
3 4
4 0
5 53
6 -155
7 2364
8 -15288
9 216817
10 -2147215
11 32932700
12 -433435816
13 7431919285
14 -120703007451
15 2326504612964
16 -44614898438480
17 963118686971137
18 -21195404220321151
19 508991484878443860
20 -12604990423335824688
21 334199905021923072597
22 -9181752759370241656699
23 266806716890671639953964

List of values

[0, 1, 1, 4, 0, 53, -155, 2364, -15288, 216817, -2147215, 32932700, -433435816, 7431919285, -120703007451, 2326504612964, -44614898438480, 963118686971137, -21195404220321151, 508991484878443860, -12604990423335824688, 334199905021923072597, -9181752759370241656699, 266806716890671639953964]

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

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