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.

A014421 Odd elements in Pascal's triangle.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 1
6 3
7 3
8 1
9 1
10 1
11 1
12 5
13 5
14 1
15 1
16 15
17 15
18 1
19 1
20 7
21 21
22 35
23 35
24 21
25 7
26 1
27 1
28 1
29 1
30 9
31 9
32 1
33 1
34 45
35 45
36 1
37 1
38 11
39 55
40 165
41 165
42 55
43 11
44 1
45 1
46 495
47 495
48 1
49 1
50 13
51 715
52 1287
53 1287
54 715
55 13
56 1
57 1
58 91
59 1001
60 3003
61 3003
62 1001
63 91
64 1
65 1
66 15
67 105
68 455
69 1365
70 3003
71 5005

List of values

[1, 1, 1, 1, 1, 1, 3, 3, 1, 1, 1, 1, 5, 5, 1, 1, 15, 15, 1, 1, 7, 21, 35, 35, 21, 7, 1, 1, 1, 1, 9, 9, 1, 1, 45, 45, 1, 1, 11, 55, 165, 165, 55, 11, 1, 1, 495, 495, 1, 1, 13, 715, 1287, 1287, 715, 13, 1, 1, 91, 1001, 3003, 3003, 1001, 91, 1, 1, 15, 105, 455, 1365, 3003, 5005]