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.

A309841 If n = Sum (2^e_k) then a(n) = Product ((e_k + 2)!).

Table of values

n a(n)
0 1
1 2
2 6
3 12
4 24
5 48
6 144
7 288
8 120
9 240
10 720
11 1440
12 2880
13 5760
14 17280
15 34560
16 720
17 1440
18 4320
19 8640
20 17280
21 34560
22 103680
23 207360
24 86400
25 172800
26 518400
27 1036800
28 2073600
29 4147200
30 12441600
31 24883200
32 5040
33 10080
34 30240
35 60480
36 120960
37 241920
38 725760
39 1451520
40 604800

List of values

[1, 2, 6, 12, 24, 48, 144, 288, 120, 240, 720, 1440, 2880, 5760, 17280, 34560, 720, 1440, 4320, 8640, 17280, 34560, 103680, 207360, 86400, 172800, 518400, 1036800, 2073600, 4147200, 12441600, 24883200, 5040, 10080, 30240, 60480, 120960, 241920, 725760, 1451520, 604800]