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.

A378399 Rectangular array read by descending antidiagonals: (row 1) = u, and for n >= 2, (row n) = u-inverse runlength sequence of u, where u = A006337 (a Beatty difference sequence). See Comments.

Table of values

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

List of values

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

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

Content is available under The OEIS End-User License Agreement.