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.

A380561 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, 1, 2, 1, 1, 2, 1, 1, 2, ...) = (A100063(n)) for n >= 1. See Comments.

Table of values

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

List of values

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

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

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