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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.

A317404 a(n) = 3*n*(2^n - 1).

Table of values

n a(n)
0 0
1 3
2 18
3 63
4 180
5 465
6 1134
7 2667
8 6120
9 13797
10 30690
11 67551
12 147420
13 319449
14 688086
15 1474515
16 3145680
17 6684621
18 14155722
19 29884359
20 62914500
21 132120513
22 276823998
23 578813883
24 1207959480
25 2516582325
26 5234491314
27 10871635887
28 22548578220
29 46707769257
30 96636764070

List of values

[0, 3, 18, 63, 180, 465, 1134, 2667, 6120, 13797, 30690, 67551, 147420, 319449, 688086, 1474515, 3145680, 6684621, 14155722, 29884359, 62914500, 132120513, 276823998, 578813883, 1207959480, 2516582325, 5234491314, 10871635887, 22548578220, 46707769257, 96636764070]

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

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