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.

A173305 Triangle by columns, A000009 in every column shifted down twice for k > 0.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 2
5 1
6 2
7 1
8 1
9 3
10 2
11 1
12 4
13 2
14 1
15 1
16 5
17 3
18 2
19 1
20 6
21 4
22 2
23 1
24 1
25 8
26 5
27 3
28 2
29 1
30 10
31 6
32 4
33 2
34 1
35 1
36 12
37 8
38 5
39 3
40 2
41 1
42 15
43 10
44 6
45 4
46 2
47 1
48 1
49 18
50 12
51 8
52 5
53 3
54 2
55 1
56 22
57 15
58 10
59 6
60 4
61 2
62 1
63 1
64 27
65 18
66 12
67 8
68 5
69 3
70 2
71 1
72 32
73 22
74 15
75 10
76 6
77 4
78 2
79 1
80 1

List of values

[1, 1, 1, 1, 2, 1, 2, 1, 1, 3, 2, 1, 4, 2, 1, 1, 5, 3, 2, 1, 6, 4, 2, 1, 1, 8, 5, 3, 2, 1, 10, 6, 4, 2, 1, 1, 12, 8, 5, 3, 2, 1, 15, 10, 6, 4, 2, 1, 1, 18, 12, 8, 5, 3, 2, 1, 22, 15, 10, 6, 4, 2, 1, 1, 27, 18, 12, 8, 5, 3, 2, 1, 32, 22, 15, 10, 6, 4, 2, 1, 1]

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

Content is available under The OEIS End-User License Agreement.