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.

A321721 Number of non-isomorphic non-normal semi-magic square multiset partitions of weight n.

Table of values

n a(n)
0 1
1 1
2 2
3 2
4 4
5 2
6 7
7 2
8 10
9 7
10 12
11 2
12 38
13 2
14 21
15 46
16 72
17 2
18 162
19 2
20 420
21 415
22 64
23 2
24 4987
25 1858
26 110
27 9336
28 45456
29 2
30 136018
31 2
32 1014658
33 406578
34 308
35 3996977
36 34937078
37 2
38 502
39 28010167
40 1530292965
41 2
42 508164038
43 2
44 54902992348
45 51712929897
46 1269
47 2
48 3217847072904
49 8597641914
50 9168720349613

List of values

[1, 1, 2, 2, 4, 2, 7, 2, 10, 7, 12, 2, 38, 2, 21, 46, 72, 2, 162, 2, 420, 415, 64, 2, 4987, 1858, 110, 9336, 45456, 2, 136018, 2, 1014658, 406578, 308, 3996977, 34937078, 2, 502, 28010167, 1530292965, 2, 508164038, 2, 54902992348, 51712929897, 1269, 2, 3217847072904, 8597641914, 9168720349613]