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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.

A344236 Number of n-step walks from a universal vertex to the other on the diamond graph.

Table of values

n a(n)
0 0
1 1
2 2
3 5
4 14
5 33
6 90
7 221
8 582
9 1465
10 3794
11 9653
12 24830
13 63441
14 162762
15 416525
16 1067574
17 2733673
18 7003970
19 17938661
20 45954542
21 117709185
22 301527354
23 772364093
24 1978473510
25 5067929881
26 12981823922
27 33253543445
28 85180839134
29 218195012913
30 558918369450

List of values

[0, 1, 2, 5, 14, 33, 90, 221, 582, 1465, 3794, 9653, 24830, 63441, 162762, 416525, 1067574, 2733673, 7003970, 17938661, 45954542, 117709185, 301527354, 772364093, 1978473510, 5067929881, 12981823922, 33253543445, 85180839134, 218195012913, 558918369450]

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

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