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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.

A185180 Enumeration table T(n,k) by antidiagonals. The order of the list is symmetrical movement from center to edges diagonal.

Table of values

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

List of values

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

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