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.

A092392 Triangle read by rows: T(n,k) = C(2*n - k,n), 0 <= k <= n.

Table of values

n a(n)
0 1
1 2
2 1
3 6
4 3
5 1
6 20
7 10
8 4
9 1
10 70
11 35
12 15
13 5
14 1
15 252
16 126
17 56
18 21
19 6
20 1
21 924
22 462
23 210
24 84
25 28
26 7
27 1
28 3432
29 1716
30 792
31 330
32 120
33 36
34 8
35 1
36 12870
37 6435
38 3003
39 1287
40 495
41 165
42 45
43 9
44 1
45 48620
46 24310
47 11440
48 5005
49 2002
50 715
51 220
52 55
53 10
54 1
55 184756
56 92378
57 43758
58 19448
59 8008
60 3003
61 1001
62 286
63 66
64 11
65 1

List of values

[1, 2, 1, 6, 3, 1, 20, 10, 4, 1, 70, 35, 15, 5, 1, 252, 126, 56, 21, 6, 1, 924, 462, 210, 84, 28, 7, 1, 3432, 1716, 792, 330, 120, 36, 8, 1, 12870, 6435, 3003, 1287, 495, 165, 45, 9, 1, 48620, 24310, 11440, 5005, 2002, 715, 220, 55, 10, 1, 184756, 92378, 43758, 19448, 8008, 3003, 1001, 286, 66, 11, 1]