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.

A331508 Array read by antidiagonals: A(n,k) is the number of nonisomorphic T_0 n-regular set multipartitions (multisets of sets) on a k-set.

Table of values

n a(n)
0 1
1 1
2 1
3 0
4 1
5 1
6 0
7 1
8 1
9 1
10 0
11 1
12 2
13 1
14 1
15 0
16 1
17 5
18 3
19 1
20 1
21 0
22 1
23 11
24 12
25 4
26 1
27 1
28 0
29 1
30 26
31 66
32 25
33 5
34 1
35 1
36 0
37 1
38 68
39 445
40 278
41 44
42 6
43 1
44 1
45 0
46 1
47 177
48 4279
49 5532
50 966
51 73
52 7
53 1
54 1
55 0
56 1
57 497
58 53340
59 200589
60 53535
61 2957
62 112
63 8
64 1
65 1
66 0
67 1
68 1476
69 846254
70 11662671
71 7043925
72 431805
73 8149
74 166
75 9
76 1
77 1

List of values

[1, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 2, 1, 1, 0, 1, 5, 3, 1, 1, 0, 1, 11, 12, 4, 1, 1, 0, 1, 26, 66, 25, 5, 1, 1, 0, 1, 68, 445, 278, 44, 6, 1, 1, 0, 1, 177, 4279, 5532, 966, 73, 7, 1, 1, 0, 1, 497, 53340, 200589, 53535, 2957, 112, 8, 1, 1, 0, 1, 1476, 846254, 11662671, 7043925, 431805, 8149, 166, 9, 1, 1]