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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.

A363402 a(n) = n * (4^n - 2^n) / Clausen(n, 0).

Table of values

n a(n)
0 0
1 2
2 12
3 56
4 480
5 992
6 4032
7 16256
8 261120
9 784896
10 1047552
11 4192256
12 33546240
13 67100672
14 268419072
15 1073709056
16 34359214080
17 17179738112
18 206157643776
19 274877382656
20 2199021158400
21 4398044413952
22 17592181850112
23 70368735789056
24 1125899839733760
25 5629499366440960

List of values

[0, 2, 12, 56, 480, 992, 4032, 16256, 261120, 784896, 1047552, 4192256, 33546240, 67100672, 268419072, 1073709056, 34359214080, 17179738112, 206157643776, 274877382656, 2199021158400, 4398044413952, 17592181850112, 70368735789056, 1125899839733760, 5629499366440960]

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

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