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.

A333361 Array read by antidiagonals: T(n,k) is the number of directed loopless multigraphs with n arcs and k vertices.

Table of values

n a(n)
0 1
1 1
2 0
3 1
4 0
5 0
6 1
7 1
8 0
9 0
10 1
11 1
12 2
13 0
14 0
15 1
16 1
17 5
18 2
19 0
20 0
21 1
22 1
23 6
24 10
25 3
26 0
27 0
28 1
29 1
30 6
31 20
32 24
33 3
34 0
35 0
36 1
37 1
38 6
39 23
40 69
41 42
42 4
43 0
44 0
45 1
46 1
47 6
48 24
49 110
50 196
51 83
52 4
53 0
54 0
55 1
56 1
57 6
58 24
59 126
60 427
61 554
62 132
63 5
64 0
65 0
66 1
67 1
68 6
69 24
70 129
71 603
72 1681
73 1368
74 222
75 5
76 0
77 0

List of values

[1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 1, 2, 0, 0, 1, 1, 5, 2, 0, 0, 1, 1, 6, 10, 3, 0, 0, 1, 1, 6, 20, 24, 3, 0, 0, 1, 1, 6, 23, 69, 42, 4, 0, 0, 1, 1, 6, 24, 110, 196, 83, 4, 0, 0, 1, 1, 6, 24, 126, 427, 554, 132, 5, 0, 0, 1, 1, 6, 24, 129, 603, 1681, 1368, 222, 5, 0, 0]