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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.

A080852 Square array of 4D pyramidal numbers, read by antidiagonals.

Table of values

n a(n)
0 1
1 1
2 4
3 1
4 5
5 10
6 1
7 6
8 15
9 20
10 1
11 7
12 20
13 35
14 35
15 1
16 8
17 25
18 50
19 70
20 56
21 1
22 9
23 30
24 65
25 105
26 126
27 84
28 1
29 10
30 35
31 80
32 140
33 196
34 210
35 120
36 1
37 11
38 40
39 95
40 175
41 266
42 336
43 330
44 165
45 1
46 12
47 45
48 110
49 210
50 336
51 462
52 540
53 495
54 220
55 1
56 13
57 50
58 125
59 245
60 406
61 588
62 750
63 825
64 715
65 286

List of values

[1, 1, 4, 1, 5, 10, 1, 6, 15, 20, 1, 7, 20, 35, 35, 1, 8, 25, 50, 70, 56, 1, 9, 30, 65, 105, 126, 84, 1, 10, 35, 80, 140, 196, 210, 120, 1, 11, 40, 95, 175, 266, 336, 330, 165, 1, 12, 45, 110, 210, 336, 462, 540, 495, 220, 1, 13, 50, 125, 245, 406, 588, 750, 825, 715, 286]

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

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