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.

A380560 Rectangular array R, read by descending antidiagonals: (row 1) = (R(1,k)) = (A006337(k)), k >= 1; (row n+1) = inverse runlength sequence of row n; and R(n,1) = 1 for n >=1, See Comments.

Table of values

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

List of values

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