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.

A178067 Triangle read by rows: T(n,k) = (n^2 + k)*(n - k + 1)/2.

Table of values

n a(n)
1 1
2 5
3 3
4 15
5 11
6 6
7 34
8 27
9 19
10 10
11 65
12 54
13 42
14 29
15 15
16 111
17 95
18 78
19 60
20 41
21 21
22 175
23 153
24 130
25 106
26 81
27 55
28 28
29 260
30 231
31 201
32 170
33 138
34 105
35 71
36 36
37 369
38 332
39 294
40 255
41 215
42 174
43 132
44 89
45 45
46 505
47 459
48 412
49 364
50 315
51 265
52 214
53 162
54 109
55 55
56 671
57 615
58 558
59 500
60 441
61 381
62 320
63 258
64 195
65 131
66 66

List of values

[1, 5, 3, 15, 11, 6, 34, 27, 19, 10, 65, 54, 42, 29, 15, 111, 95, 78, 60, 41, 21, 175, 153, 130, 106, 81, 55, 28, 260, 231, 201, 170, 138, 105, 71, 36, 369, 332, 294, 255, 215, 174, 132, 89, 45, 505, 459, 412, 364, 315, 265, 214, 162, 109, 55, 671, 615, 558, 500, 441, 381, 320, 258, 195, 131, 66]