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.

A104634 Triangle T(n,k) = (k-1-n)*(k-2-n)*(k+2*n)/6, 1<=k<=n.

Table of values

n a(n)
1 1
2 5
3 2
4 14
5 8
6 3
7 30
8 20
9 11
10 4
11 55
12 40
13 26
14 14
15 5
16 91
17 70
18 50
19 32
20 17
21 6
22 140
23 112
24 85
25 60
26 38
27 20
28 7
29 204
30 168
31 133
32 100
33 70
34 44
35 23
36 8
37 285
38 240
39 196
40 154
41 115
42 80
43 50
44 26
45 9
46 385
47 330
48 276
49 224
50 175
51 130
52 90
53 56
54 29
55 10
56 506
57 440
58 375
59 312
60 252
61 196
62 145
63 100
64 62
65 32
66 11
67 650
68 572
69 495
70 420
71 348
72 280
73 217
74 160
75 110
76 68
77 35
78 12
79 819
80 728
81 638
82 550
83 465
84 384

List of values

[1, 5, 2, 14, 8, 3, 30, 20, 11, 4, 55, 40, 26, 14, 5, 91, 70, 50, 32, 17, 6, 140, 112, 85, 60, 38, 20, 7, 204, 168, 133, 100, 70, 44, 23, 8, 285, 240, 196, 154, 115, 80, 50, 26, 9, 385, 330, 276, 224, 175, 130, 90, 56, 29, 10, 506, 440, 375, 312, 252, 196, 145, 100, 62, 32, 11, 650, 572, 495, 420, 348, 280, 217, 160, 110, 68, 35, 12, 819, 728, 638, 550, 465, 384]