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.

A049823 a(n)=number of 2's in n-th row of array T given by A049816.

Table of values

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

List of values

[0, 0, 0, 0, 1, 0, 2, 1, 2, 2, 4, 1, 4, 4, 4, 4, 7, 2, 6, 5, 6, 8, 8, 5, 7, 7, 8, 7, 10, 7, 10, 9, 9, 11, 12, 6, 11, 12, 10, 10, 12, 11, 10, 15, 12, 14, 14, 10, 14, 11, 16, 14, 12, 12, 17, 16, 16, 16, 14, 14, 10, 18, 15, 16, 20, 17, 16, 18, 19, 19]