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.

A057028 Triangle T read by rows: row n consists of the numbers C(n,2)+1 to C(n+1,2); numbers in odd-numbered places form a decreasing sequence and the others an increasing sequence.

Table of values

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

List of values

[1, 3, 2, 5, 6, 4, 9, 8, 10, 7, 13, 14, 12, 15, 11, 19, 18, 20, 17, 21, 16, 25, 26, 24, 27, 23, 28, 22, 33, 32, 34, 31, 35, 30, 36, 29, 41, 42, 40, 43, 39, 44, 38, 45, 37, 51, 50, 52, 49, 53, 48, 54, 47, 55, 46, 61, 62, 60, 63, 59, 64, 58, 65, 57, 66, 56]

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

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