cp's OEIS Frontend

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.

A192479 a(n) = 2^n*C(n-1) - A186997(n-1), where C(n) are the Catalan numbers (A000108).

Table of values

n a(n)
1 1
2 3
3 12
4 61
5 344
6 2074
7 13080
8 85229
9 569264
10 3876766
11 26817304
12 187908802
13 1330934032
14 9513485076
15 68539442800
16 497178707325
17 3628198048352
18 26617955242806
19 196205766112536
20 1452410901340598
21 10792613273706320

List of values

[1, 3, 12, 61, 344, 2074, 13080, 85229, 569264, 3876766, 26817304, 187908802, 1330934032, 9513485076, 68539442800, 497178707325, 3628198048352, 26617955242806, 196205766112536, 1452410901340598, 10792613273706320]

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

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