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.

A141471 Number of 2's in A139067(n).

Table of values

n a(n)
1 1
2 0
3 1
4 2
5 1
6 1
7 1
8 4
9 7
10 2
11 10
12 7
13 5
14 4
15 1
16 5
17 1
18 14
19 10
20 8
21 19
22 1
23 19
24 8
25 13
26 17
27 23
28 10
29 13
30 35
31 11
32 28
33 16
34 31
35 37
36 19
37 32
38 31
39 29
40 14
41 13
42 31
43 40
44 1
45 4
46 37
47 50
48 11
49 5
50 55
51 53
52 50
53 47
54 17
55 49
56 47
57 35
58 49
59 16
60 22
61 16
62 44
63 73
64 5
65 38
66 76
67 31
68 23
69 83
70 25
71 53
72 50
73 61
74 1

List of values

[1, 0, 1, 2, 1, 1, 1, 4, 7, 2, 10, 7, 5, 4, 1, 5, 1, 14, 10, 8, 19, 1, 19, 8, 13, 17, 23, 10, 13, 35, 11, 28, 16, 31, 37, 19, 32, 31, 29, 14, 13, 31, 40, 1, 4, 37, 50, 11, 5, 55, 53, 50, 47, 17, 49, 47, 35, 49, 16, 22, 16, 44, 73, 5, 38, 76, 31, 23, 83, 25, 53, 50, 61, 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.