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.

A023630 a(n) = s(2n) - s(2n-1), where s( ) is sequence A023629.

Table of values

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

List of values

[3, 2, 4, 4, 2, 2, 4, 2, 2, 4, 4, 4, 2, 2, 4, 4, 4, 2, 2, 4, 2, 2, 4, 2, 2, 4, 4, 4, 2, 2, 4, 2, 2, 4, 2, 2, 4, 4, 4, 2, 2, 4, 4, 4, 2, 2, 4, 4, 4, 2, 2, 4, 2, 2, 4, 2, 2, 4, 4, 4, 2, 2, 4, 4, 4, 2, 2, 4, 4, 4, 2, 2, 4, 2, 2, 4, 2, 2, 4, 4, 4, 2, 2, 4, 2, 2, 4, 2, 2, 4, 4, 4, 2, 2, 4, 2, 2, 4, 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.