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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.

A297211 Expansion of e.g.f. log(1 + arctan(x))*exp(-x).

Table of values

n a(n)
0 0
1 1
2 -3
3 6
4 -8
5 13
6 -103
7 462
8 824
9 -8239
10 -147747
11 1233518
12 12148288
13 -127674419
14 -2090702391
15 24495009510
16 410685350032
17 -5514147250815
18 -111860639828131
19 1673006899192118
20 37306857729115304
21 -619246417449233555
22 -15476404474443728487
23 281907759055194714206

List of values

[0, 1, -3, 6, -8, 13, -103, 462, 824, -8239, -147747, 1233518, 12148288, -127674419, -2090702391, 24495009510, 410685350032, -5514147250815, -111860639828131, 1673006899192118, 37306857729115304, -619246417449233555, -15476404474443728487, 281907759055194714206]

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

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