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.

A180281 Triangle read by rows: T(n,k) = number of arrangements of n indistinguishable balls in n boxes with the maximum number of balls in any box equal to k.

Table of values

n a(n)
1 1
2 1
3 2
4 1
5 6
6 3
7 1
8 18
9 12
10 4
11 1
12 50
13 50
14 20
15 5
16 1
17 140
18 195
19 90
20 30
21 6
22 1
23 392
24 735
25 392
26 147
27 42
28 7
29 1
30 1106
31 2716
32 1652
33 672
34 224
35 56
36 8
37 1
38 3138
39 9912
40 6804
41 2970
42 1080
43 324
44 72
45 9
46 1
47 8952
48 35850
49 27600
50 12825
51 4950
52 1650
53 450
54 90
55 10
56 1
57 25652
58 128865
59 110715
60 54450
61 22022
62 7865
63 2420
64 605
65 110
66 11

List of values

[1, 1, 2, 1, 6, 3, 1, 18, 12, 4, 1, 50, 50, 20, 5, 1, 140, 195, 90, 30, 6, 1, 392, 735, 392, 147, 42, 7, 1, 1106, 2716, 1652, 672, 224, 56, 8, 1, 3138, 9912, 6804, 2970, 1080, 324, 72, 9, 1, 8952, 35850, 27600, 12825, 4950, 1650, 450, 90, 10, 1, 25652, 128865, 110715, 54450, 22022, 7865, 2420, 605, 110, 11]