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.

A110608 Number triangle T(n,k) = binomial(n,k)*binomial(2n,n-k).

Table of values

n a(n)
0 1
1 2
2 1
3 6
4 8
5 1
6 20
7 45
8 18
9 1
10 70
11 224
12 168
13 32
14 1
15 252
16 1050
17 1200
18 450
19 50
20 1
21 924
22 4752
23 7425
24 4400
25 990
26 72
27 1
28 3432
29 21021
30 42042
31 35035
32 12740
33 1911
34 98
35 1
36 12870
37 91520
38 224224
39 244608
40 127400
41 31360
42 3360
43 128
44 1
45 48620
46 393822
47 1145664
48 1559376

List of values

[1, 2, 1, 6, 8, 1, 20, 45, 18, 1, 70, 224, 168, 32, 1, 252, 1050, 1200, 450, 50, 1, 924, 4752, 7425, 4400, 990, 72, 1, 3432, 21021, 42042, 35035, 12740, 1911, 98, 1, 12870, 91520, 224224, 244608, 127400, 31360, 3360, 128, 1, 48620, 393822, 1145664, 1559376]