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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.

A157196 a(n) = (1/2)*(sum of elements of n-th run) using 1 and 2 starting with 1,1.

Table of values

n a(n)
1 1
2 1
3 2
4 1
5 1
6 1
7 1
8 2
9 1
10 1
11 2
12 1
13 1
14 2
15 2
16 1
17 1
18 2
19 1
20 1
21 1
22 1
23 2
24 1
25 1
26 2
27 2
28 1
29 1
30 1
31 1
32 2
33 1
34 1
35 2
36 2
37 1
38 1
39 2
40 1
41 1
42 2
43 1
44 1
45 1
46 1
47 2
48 1
49 1
50 2
51 2
52 1
53 1
54 1
55 1
56 2
57 1
58 1
59 2
60 1
61 1
62 2
63 2
64 1
65 1
66 2
67 1
68 1
69 1
70 1
71 2
72 2
73 1
74 1
75 2
76 1
77 1
78 1
79 1
80 2
81 1
82 1
83 2
84 2
85 1
86 1
87 2
88 1
89 1
90 2
91 1
92 1
93 1
94 1
95 2
96 1
97 1
98 2
99 2
100 1
101 1
102 1
103 1
104 2
105 1

List of values

[1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 2, 2, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 2, 2, 1, 1, 2, 1, 1, 1, 1, 2, 2, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 1, 1, 2, 1]