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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.

A048804 Triangle: T(n,k)=b(n)/(b(k)*b(n-k)) where b is A048803.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 2
5 1
6 1
7 3
8 3
9 1
10 1
11 2
12 3
13 2
14 1
15 1
16 5
17 5
18 5
19 5
20 1
21 1
22 6
23 15
24 10
25 15
26 6
27 1
28 1
29 7
30 21
31 35
32 35
33 21
34 7
35 1
36 1
37 2
38 7
39 14
40 35
41 14
42 7
43 2
44 1
45 1
46 3
47 3
48 7
49 21
50 21
51 7
52 3
53 3
54 1
55 1
56 10
57 15
58 10
59 35
60 42
61 35
62 10
63 15
64 10
65 1
66 1
67 11
68 55
69 55
70 55
71 77
72 77
73 55
74 55
75 55
76 11
77 1
78 1
79 6
80 33
81 110
82 165
83 66

List of values

[1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 2, 3, 2, 1, 1, 5, 5, 5, 5, 1, 1, 6, 15, 10, 15, 6, 1, 1, 7, 21, 35, 35, 21, 7, 1, 1, 2, 7, 14, 35, 14, 7, 2, 1, 1, 3, 3, 7, 21, 21, 7, 3, 3, 1, 1, 10, 15, 10, 35, 42, 35, 10, 15, 10, 1, 1, 11, 55, 55, 55, 77, 77, 55, 55, 55, 11, 1, 1, 6, 33, 110, 165, 66]

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