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.

A107249 A number triangle with repeated columns of binomial coefficients.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 1
6 2
7 1
8 1
9 1
10 3
11 2
12 2
13 1
14 1
15 6
16 3
17 3
18 2
19 1
20 1
21 10
22 6
23 6
24 3
25 3
26 1
27 1
28 20
29 10
30 10
31 6
32 4
33 3
34 1
35 1
36 35
37 20
38 20
39 10
40 10
41 4
42 4
43 1
44 1
45 70
46 35
47 35
48 20
49 15
50 10
51 5
52 4
53 1
54 1
55 126
56 70
57 70
58 35
59 35
60 15
61 15
62 5
63 5
64 1
65 1
66 252
67 126
68 126
69 70
70 56
71 35
72 21
73 15
74 6
75 5
76 1
77 1
78 462
79 252
80 252
81 126
82 126

List of values

[1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 3, 2, 2, 1, 1, 6, 3, 3, 2, 1, 1, 10, 6, 6, 3, 3, 1, 1, 20, 10, 10, 6, 4, 3, 1, 1, 35, 20, 20, 10, 10, 4, 4, 1, 1, 70, 35, 35, 20, 15, 10, 5, 4, 1, 1, 126, 70, 70, 35, 35, 15, 15, 5, 5, 1, 1, 252, 126, 126, 70, 56, 35, 21, 15, 6, 5, 1, 1, 462, 252, 252, 126, 126]