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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.

A191003 E.g.f. arctan(x/cos(x)) (odd powers only).

Table of values

n a(n)
0 1
1 1
2 -11
3 -83
4 6921
5 60281
6 -29132611
7 208438245
8 427918448785
9 -22588439158415
10 -15853957892902395
11 2325342085659612317
12 1210510298677225936025
13 -389238357419648883489303
14 -164119044571112073285613619

List of values

[1, 1, -11, -83, 6921, 60281, -29132611, 208438245, 427918448785, -22588439158415, -15853957892902395, 2325342085659612317, 1210510298677225936025, -389238357419648883489303, -164119044571112073285613619]

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

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