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.

A204459 Square array A(n,k), n>=0, k>=0, read by antidiagonals: A(n,k) is the number of k-element subsets that can be chosen from {1,2,...,k*n} having element sum k*(k*n+1)/2.

Table of values

n a(n)
0 1
1 0
2 1
3 0
4 1
5 1
6 0
7 1
8 0
9 1
10 0
11 1
12 2
13 1
14 1
15 0
16 1
17 0
18 3
19 0
20 1
21 0
22 1
23 8
24 8
25 4
26 1
27 1
28 0
29 1
30 0
31 33
32 0
33 5
34 0
35 1
36 0
37 1
38 58
39 141
40 86
41 25
42 6
43 1
44 1
45 0
46 1
47 0
48 676
49 0
50 177
51 0
52 7
53 0
54 1
55 0
56 1
57 526
58 3370
59 3486
60 1394
61 318
62 50
63 8
64 1
65 1
66 0
67 1
68 0
69 17575
70 0
71 11963
72 0
73 519
74 0
75 9
76 0
77 1

List of values

[1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 2, 1, 1, 0, 1, 0, 3, 0, 1, 0, 1, 8, 8, 4, 1, 1, 0, 1, 0, 33, 0, 5, 0, 1, 0, 1, 58, 141, 86, 25, 6, 1, 1, 0, 1, 0, 676, 0, 177, 0, 7, 0, 1, 0, 1, 526, 3370, 3486, 1394, 318, 50, 8, 1, 1, 0, 1, 0, 17575, 0, 11963, 0, 519, 0, 9, 0, 1]