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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.

A154604 Hankel transform of reduced tangent numbers.

Table of values

n a(n)
0 1
1 1
2 3
3 54
4 9720
5 26244000
6 1488034800000
7 2362404048480000000
8 135019896025206528000000000
9 347259290825980971841536000000000000
10 49121618545275670528799969525760000000000000000

List of values

[1, 1, 3, 54, 9720, 26244000, 1488034800000, 2362404048480000000, 135019896025206528000000000, 347259290825980971841536000000000000, 49121618545275670528799969525760000000000000000]

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

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