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.

A067297 Convolution of C(2,2; n) := A064340(n) (generalized Catalan numbers) with itself.

Table of values

n a(n)
0 1
1 2
2 9
3 64
4 584
5 6144
6 70576
7 859520
8 10909440
9 142773760
10 1913027840
11 26115182592
12 361936623616
13 5079287545856
14 72033971859456
15 1030768222437376
16 14864066521333760
17 215791593346695168

List of values

[1, 2, 9, 64, 584, 6144, 70576, 859520, 10909440, 142773760, 1913027840, 26115182592, 361936623616, 5079287545856, 72033971859456, 1030768222437376, 14864066521333760, 215791593346695168]

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

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