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.

A261721 Fourth-dimensional figurate numbers.

Table of values

n a(n)
1 1
2 1
3 5
4 1
5 6
6 15
7 1
8 7
9 20
10 35
11 1
12 8
13 25
14 50
15 70
16 1
17 9
18 30
19 65
20 105
21 126
22 1
23 10
24 35
25 80
26 140
27 196
28 210
29 1
30 11
31 40
32 95
33 175
34 266
35 336
36 330
37 1
38 12
39 45
40 110
41 210
42 336
43 462
44 540
45 495
46 1
47 13
48 50
49 125
50 245
51 406
52 588
53 750
54 825
55 715
56 1
57 14
58 55
59 140
60 280
61 476
62 714
63 960
64 1155
65 1210
66 1001
67 1

List of values

[1, 1, 5, 1, 6, 15, 1, 7, 20, 35, 1, 8, 25, 50, 70, 1, 9, 30, 65, 105, 126, 1, 10, 35, 80, 140, 196, 210, 1, 11, 40, 95, 175, 266, 336, 330, 1, 12, 45, 110, 210, 336, 462, 540, 495, 1, 13, 50, 125, 245, 406, 588, 750, 825, 715, 1, 14, 55, 140, 280, 476, 714, 960, 1155, 1210, 1001, 1]