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.

A304482 Number A(n,k) of n-element subsets of [k*n] whose elements sum to a multiple of n. Square array A(n,k) with n, k >= 0 read by antidiagonals.

Table of values

n a(n)
0 1
1 1
2 0
3 1
4 1
5 0
6 1
7 2
8 0
9 0
10 1
11 3
12 2
13 1
14 0
15 1
16 4
17 6
18 8
19 0
20 0
21 1
22 5
23 12
24 30
25 18
26 1
27 0
28 1
29 6
30 20
31 76
32 126
33 52
34 0
35 0
36 1
37 7
38 30
39 155
40 460
41 603
42 152
43 1
44 0
45 1
46 8
47 42
48 276
49 1220
50 3104
51 3084
52 492
53 0
54 0
55 1
56 9
57 56
58 448
59 2670
60 10630
61 22404
62 16614
63 1618
64 1
65 0
66 1
67 10
68 72
69 680
70 5138
71 28506
72 98900
73 169152
74 91998
75 5408
76 0
77 0

List of values

[1, 1, 0, 1, 1, 0, 1, 2, 0, 0, 1, 3, 2, 1, 0, 1, 4, 6, 8, 0, 0, 1, 5, 12, 30, 18, 1, 0, 1, 6, 20, 76, 126, 52, 0, 0, 1, 7, 30, 155, 460, 603, 152, 1, 0, 1, 8, 42, 276, 1220, 3104, 3084, 492, 0, 0, 1, 9, 56, 448, 2670, 10630, 22404, 16614, 1618, 1, 0, 1, 10, 72, 680, 5138, 28506, 98900, 169152, 91998, 5408, 0, 0]