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.

A004737 Concatenation of sequences (1,2,...,n-1,n,n-1,...,1) for n >= 1.

Table of values

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

List of values

[1, 1, 2, 1, 1, 2, 3, 2, 1, 1, 2, 3, 4, 3, 2, 1, 1, 2, 3, 4, 5, 4, 3, 2, 1, 1, 2, 3, 4, 5, 6, 5, 4, 3, 2, 1, 1, 2, 3, 4, 5, 6, 7, 6, 5, 4, 3, 2, 1, 1, 2, 3, 4, 5, 6, 7, 8, 7, 6, 5, 4, 3, 2, 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 8, 7, 6, 5, 4, 3, 2, 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 1, 2, 3, 4, 5]