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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.

A046880 Number of isolated-pentagon (IPR) fullerenes with 2n vertices (or carbon atoms).

Table of values

n a(n)
30 1
31 0
32 0
33 0
34 0
35 1
36 1
37 1
38 2
39 5
40 7
41 9
42 24
43 19
44 35
45 46
46 86
47 134
48 187
49 259
50 450
51 616
52 823
53 1233
54 1799
55 2355
56 3342
57 4468
58 6063
59 8148
60 10774
61 13977
62 18769
63 23589
64 30683
65 39393
66 49878
67 62372
68 79362
69 98541
70 121354
71 151201
72 186611
73 225245
74 277930
75 335569

List of values

[1, 0, 0, 0, 0, 1, 1, 1, 2, 5, 7, 9, 24, 19, 35, 46, 86, 134, 187, 259, 450, 616, 823, 1233, 1799, 2355, 3342, 4468, 6063, 8148, 10774, 13977, 18769, 23589, 30683, 39393, 49878, 62372, 79362, 98541, 121354, 151201, 186611, 225245, 277930, 335569]

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

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