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.

A367270 Triangle read by rows. T(n, k) = binomial(n, k)*binomial(n - 1, n - k - 1).

Table of values

n a(n)
0 1
1 1
2 0
3 1
4 2
5 0
6 1
7 6
8 3
9 0
10 1
11 12
12 18
13 4
14 0
15 1
16 20
17 60
18 40
19 5
20 0
21 1
22 30
23 150
24 200
25 75
26 6
27 0
28 1
29 42
30 315
31 700
32 525
33 126
34 7
35 0
36 1
37 56
38 588
39 1960
40 2450
41 1176
42 196
43 8
44 0
45 1
46 72
47 1008
48 4704
49 8820
50 7056
51 2352
52 288
53 9
54 0
55 1
56 90
57 1620
58 10080
59 26460
60 31752
61 17640
62 4320
63 405
64 10
65 0

List of values

[1, 1, 0, 1, 2, 0, 1, 6, 3, 0, 1, 12, 18, 4, 0, 1, 20, 60, 40, 5, 0, 1, 30, 150, 200, 75, 6, 0, 1, 42, 315, 700, 525, 126, 7, 0, 1, 56, 588, 1960, 2450, 1176, 196, 8, 0, 1, 72, 1008, 4704, 8820, 7056, 2352, 288, 9, 0, 1, 90, 1620, 10080, 26460, 31752, 17640, 4320, 405, 10, 0]