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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.

A028266 Even elements in 3-Pascal triangle A028262 (by row).

Table of values

n a(n)
0 4
1 4
2 8
3 6
4 6
5 26
6 8
7 26
8 26
9 8
10 34
11 90
12 34
13 10
14 10
15 148
16 266
17 322
18 266
19 148
20 12
21 64
22 414
23 588
24 588
25 414
26 64
27 12
28 76
29 1002
30 1176
31 1002
32 76
33 14
34 880
35 2178
36 2178
37 880
38 14
39 430
40 4356
41 430
42 16
43 118
44 3718
45 6292
46 6292
47 3718
48 118
49 16
50 134
51 2184
52 10010
53 16302
54 10010

List of values

[4, 4, 8, 6, 6, 26, 8, 26, 26, 8, 34, 90, 34, 10, 10, 148, 266, 322, 266, 148, 12, 64, 414, 588, 588, 414, 64, 12, 76, 1002, 1176, 1002, 76, 14, 880, 2178, 2178, 880, 14, 430, 4356, 430, 16, 118, 3718, 6292, 6292, 3718, 118, 16, 134, 2184, 10010, 16302, 10010]

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

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