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.

A258708 Triangle read by rows: T(i,j) = integer part of binomial(i+j, i-j)/(2*j+1) for i >= 1 and j = 0..i-1.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 2
6 1
7 1
8 3
9 3
10 1
11 1
12 5
13 7
14 4
15 1
16 1
17 7
18 14
19 12
20 5
21 1
22 1
23 9
24 25
25 30
26 18
27 6
28 1
29 1
30 12
31 42
32 66
33 55
34 26
35 7
36 1
37 1
38 15
39 66
40 132
41 143
42 91
43 35
44 8
45 1
46 1
47 18
48 99
49 245
50 334
51 273
52 140
53 45
54 9
55 1
56 1
57 22
58 143
59 429
60 715
61 728
62 476
63 204
64 57
65 10
66 1

List of values

[1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 5, 7, 4, 1, 1, 7, 14, 12, 5, 1, 1, 9, 25, 30, 18, 6, 1, 1, 12, 42, 66, 55, 26, 7, 1, 1, 15, 66, 132, 143, 91, 35, 8, 1, 1, 18, 99, 245, 334, 273, 140, 45, 9, 1, 1, 22, 143, 429, 715, 728, 476, 204, 57, 10, 1]