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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.

A133039 a(n) = P(n)^3 - P(n)^2 where P(n) = A000931(n).

Table of values

n a(n)
0 0
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 4
9 4
10 18
11 48
12 100
13 294
14 648
15 1584
16 3840
17 8820
18 21168
19 49284
20 115248
21 270400
22 628660
23 1468548
24 3420150
25 7960000
26 18539400
27 43120350
28 100328400
29 233365440
30 542672640
31 1262045880
32 2934442944
33 6822962664
34 15863704528
35 36881698048
36 85746672900
37 199347278724
38 463445232298

List of values

[0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 18, 48, 100, 294, 648, 1584, 3840, 8820, 21168, 49284, 115248, 270400, 628660, 1468548, 3420150, 7960000, 18539400, 43120350, 100328400, 233365440, 542672640, 1262045880, 2934442944, 6822962664, 15863704528, 36881698048, 85746672900, 199347278724, 463445232298]

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

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