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.

A331436 Array read by antidiagonals: A(n,k) is the number of n element multisets of n element multisets of a k-set.

Table of values

n a(n)
0 1
1 1
2 0
3 1
4 1
5 0
6 1
7 2
8 1
9 0
10 1
11 3
12 6
13 1
14 0
15 1
16 4
17 21
18 20
19 1
20 0
21 1
22 5
23 55
24 220
25 70
26 1
27 0
28 1
29 6
30 120
31 1540
32 3060
33 252
34 1
35 0
36 1
37 7
38 231
39 7770
40 73815
41 53130
42 924
43 1
44 0
45 1
46 8
47 406
48 30856
49 1088430
50 5461512
51 1107568
52 3432
53 1
54 0
55 1
56 9
57 666
58 102340
59 11009376
60 286243776
61 581106988
62 26978328
63 12870
64 1
65 0

List of values

[1, 1, 0, 1, 1, 0, 1, 2, 1, 0, 1, 3, 6, 1, 0, 1, 4, 21, 20, 1, 0, 1, 5, 55, 220, 70, 1, 0, 1, 6, 120, 1540, 3060, 252, 1, 0, 1, 7, 231, 7770, 73815, 53130, 924, 1, 0, 1, 8, 406, 30856, 1088430, 5461512, 1107568, 3432, 1, 0, 1, 9, 666, 102340, 11009376, 286243776, 581106988, 26978328, 12870, 1, 0]