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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.

A378778 a(n) = n^2 * 2^n * binomial(3*n, n).

Table of values

n a(n)
0 0
1 6
2 240
3 6048
4 126720
5 2402400
6 42771456
7 729308160
8 12049956864
9 194372006400
10 3076609536000
11 47959947509760
12 738269547724800
13 11245075661094912
14 169748150676357120
15 2542638555345715200
16 37830087271621066752
17 559525260959878348800
18 8232406073859904634880
19 120560661522092497305600

List of values

[0, 6, 240, 6048, 126720, 2402400, 42771456, 729308160, 12049956864, 194372006400, 3076609536000, 47959947509760, 738269547724800, 11245075661094912, 169748150676357120, 2542638555345715200, 37830087271621066752, 559525260959878348800, 8232406073859904634880, 120560661522092497305600]

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

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