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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.

A290348 Denominators of the Harary index for the n-halved cube graph.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 1
6 3
7 3
8 3
9 1
10 5
11 5
12 15
13 15
14 105
15 105
16 105
17 105
18 315
19 315
20 315
21 315
22 3465
23 3465
24 3465
25 693
26 9009
27 3003
28 3003
29 3003
30 5005
31 5005
32 5005
33 5005
34 85085
35 17017
36 153153
37 153153
38 2909907
39 2909907
40 14549535

List of values

[1, 1, 1, 1, 1, 3, 3, 3, 1, 5, 5, 15, 15, 105, 105, 105, 105, 315, 315, 315, 315, 3465, 3465, 3465, 693, 9009, 3003, 3003, 3003, 5005, 5005, 5005, 5005, 85085, 17017, 153153, 153153, 2909907, 2909907, 14549535]

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

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