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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.

A120796 Denominators of partial sums of Catalan numbers scaled by powers of -1/20.

Table of values

n a(n)
0 1
1 20
2 200
3 1600
4 80000
5 1600000
6 16000000
7 1280000000
8 512000000
9 256000000000
10 2560000000000
11 102400000000000
12 1024000000000000
13 4096000000000000
14 40960000000000000
15 6553600000000000000

List of values

[1, 20, 200, 1600, 80000, 1600000, 16000000, 1280000000, 512000000, 256000000000, 2560000000000, 102400000000000, 1024000000000000, 4096000000000000, 40960000000000000, 6553600000000000000]

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

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