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.

A158833 A diagonal in the array A158825 of coefficients of successive iterations of x*C(x), where C(x) is the Catalan function (A000108).

Table of values

n a(n)
1 1
2 3
3 20
4 195
5 2464
6 38052
7 693048
8 14528217
9 344320262
10 9100230282
11 265305808404
12 8456446272144
13 292528760419440
14 10913859037065560
15 436812586581170976
16 18668379209883807385
17 848499254768957476312

List of values

[1, 3, 20, 195, 2464, 38052, 693048, 14528217, 344320262, 9100230282, 265305808404, 8456446272144, 292528760419440, 10913859037065560, 436812586581170976, 18668379209883807385, 848499254768957476312]

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

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