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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.

A121162 Number of separated bicyclic skeletons with n carbon atoms (see Parks et al. for precise definition).

Table of values

n a(n)
6 1
7 3
8 13
9 41
10 141
11 440
12 1391
13 4244
14 12913
15 38651
16 115082
17 339646
18 997709
19 2915010
20 8485573
21 24612666
22 71191458
23 205393819
24 591330506
25 1699226719
26 4874925420
27 13965498369
28 39957144189
29 114193222891
30 326023307022
31 929958622555
32 2650483647976
33 7548608038736

List of values

[1, 3, 13, 41, 141, 440, 1391, 4244, 12913, 38651, 115082, 339646, 997709, 2915010, 8485573, 24612666, 71191458, 205393819, 591330506, 1699226719, 4874925420, 13965498369, 39957144189, 114193222891, 326023307022, 929958622555, 2650483647976, 7548608038736]

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

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