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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.

A204250 Symmetric matrix read by antidiagonals given by T(i,j)=i*j+i+j-2.

Table of values

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

List of values

[1, 3, 3, 5, 6, 5, 7, 9, 9, 7, 9, 12, 13, 12, 9, 11, 15, 17, 17, 15, 11, 13, 18, 21, 22, 21, 18, 13, 15, 21, 25, 27, 27, 25, 21, 15, 17, 24, 29, 32, 33, 32, 29, 24, 17, 19, 27, 33, 37, 39, 39, 37, 33, 27, 19, 21, 30, 37, 42, 45, 46, 45, 42, 37, 30, 21, 23, 33, 41, 47]

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

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