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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.

A201923 E.g.f. satisfies: A(x) = 1/(cos(x*A(x)) - sin(x*A(x))).

Table of values

n a(n)
0 1
1 1
2 5
3 44
4 581
5 10256
6 227529
7 6088256
8 190930729
9 6870227200
10 279066777613
11 12632667642880
12 630670054092525
13 34426087332253696
14 2039903110075608977
15 130404672744539242496
16 8946117466489960168913
17 655585000075494566199296
18 51111210765059412626238741

List of values

[1, 1, 5, 44, 581, 10256, 227529, 6088256, 190930729, 6870227200, 279066777613, 12632667642880, 630670054092525, 34426087332253696, 2039903110075608977, 130404672744539242496, 8946117466489960168913, 655585000075494566199296, 51111210765059412626238741]

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

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