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.

A154221 A simple Pascal-like triangle.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 2
5 1
6 1
7 3
8 3
9 1
10 1
11 5
12 5
13 5
14 1
15 1
16 9
17 9
18 9
19 9
20 1
21 1
22 17
23 17
24 17
25 17
26 17
27 1
28 1
29 33
30 33
31 33
32 33
33 33
34 33
35 1
36 1
37 65
38 65
39 65
40 65
41 65
42 65
43 65
44 1
45 1
46 129
47 129
48 129
49 129
50 129
51 129
52 129
53 129
54 1
55 1
56 257
57 257
58 257
59 257
60 257
61 257
62 257
63 257
64 257
65 1

List of values

[1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 5, 5, 5, 1, 1, 9, 9, 9, 9, 1, 1, 17, 17, 17, 17, 17, 1, 1, 33, 33, 33, 33, 33, 33, 1, 1, 65, 65, 65, 65, 65, 65, 65, 1, 1, 129, 129, 129, 129, 129, 129, 129, 129, 1, 1, 257, 257, 257, 257, 257, 257, 257, 257, 257, 1]