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.

A079520 Triangular array related to tennis ball problem, read by rows.

Table of values

n a(n)
0 0
1 0
2 1
3 0
4 1
5 3
6 0
7 1
8 4
9 10
10 0
11 1
12 5
13 15
14 31
15 0
16 1
17 6
18 21
19 52
20 105
21 0
22 1
23 7
24 28
25 80
26 185
27 343
28 0
29 1
30 8
31 36
32 116
33 301
34 644
35 1198
36 0
37 1
38 9
39 45
40 161
41 462
42 1106
43 2304
44 4056
45 0
46 1
47 10
48 55
49 216
50 678
51 1784
52 4088
53 8144
54 14506
55 0
56 1
57 11
58 66
59 282
60 960
61 2744
62 6832
63 14976
64 29482
65 50350

List of values

[0, 0, 1, 0, 1, 3, 0, 1, 4, 10, 0, 1, 5, 15, 31, 0, 1, 6, 21, 52, 105, 0, 1, 7, 28, 80, 185, 343, 0, 1, 8, 36, 116, 301, 644, 1198, 0, 1, 9, 45, 161, 462, 1106, 2304, 4056, 0, 1, 10, 55, 216, 678, 1784, 4088, 8144, 14506, 0, 1, 11, 66, 282, 960, 2744, 6832, 14976, 29482, 50350]