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.

A062038 Triangular array T(n,k) giving number of alternating link diagrams with n >= 0 crossings, k = 0..[n/2] connected components and two external legs.

Table of values

n a(n)
0 1
1 2
2 8
3 1
4 42
5 12
6 260
7 114
8 4
9 1796
10 1030
11 90
12 13396
13 9290
14 1349
15 22
16 105706
17 84840
18 17220
19 728
20 870772
21 787082
22 203568
23 14884
24 140
25 7420836
26 7415814
27 2312094
28 244908
29 6120
30 65004584
31 70867212
32 25691670
33 3575045
34 158354
35 969

List of values

[1, 2, 8, 1, 42, 12, 260, 114, 4, 1796, 1030, 90, 13396, 9290, 1349, 22, 105706, 84840, 17220, 728, 870772, 787082, 203568, 14884, 140, 7420836, 7415814, 2312094, 244908, 6120, 65004584, 70867212, 25691670, 3575045, 158354, 969]

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

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