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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.

A073254 Array read by antidiagonals, A(n,k) = n^2 + n*k + k^2.

Table of values

n a(n)
0 0
1 1
2 1
3 4
4 3
5 4
6 9
7 7
8 7
9 9
10 16
11 13
12 12
13 13
14 16
15 25
16 21
17 19
18 19
19 21
20 25
21 36
22 31
23 28
24 27
25 28
26 31
27 36
28 49
29 43
30 39
31 37
32 37
33 39
34 43
35 49
36 64
37 57
38 52
39 49
40 48
41 49
42 52
43 57
44 64
45 81
46 73
47 67
48 63
49 61
50 61
51 63
52 67
53 73
54 81
55 100
56 91
57 84
58 79
59 76
60 75
61 76
62 79
63 84
64 91
65 100
66 121
67 111
68 103
69 97

List of values

[0, 1, 1, 4, 3, 4, 9, 7, 7, 9, 16, 13, 12, 13, 16, 25, 21, 19, 19, 21, 25, 36, 31, 28, 27, 28, 31, 36, 49, 43, 39, 37, 37, 39, 43, 49, 64, 57, 52, 49, 48, 49, 52, 57, 64, 81, 73, 67, 63, 61, 61, 63, 67, 73, 81, 100, 91, 84, 79, 76, 75, 76, 79, 84, 91, 100, 121, 111, 103, 97]

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

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