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.

A361521 Array read by descending antidiagonals. A(n, k) is the number of the nonempty multiset combinations of {0, 1} as defined in A361682.

Table of values

n a(n)
0 0
1 0
2 0
3 0
4 2
5 0
6 0
7 5
8 4
9 0
10 0
11 9
12 12
13 6
14 0
15 0
16 14
17 24
18 21
19 8
20 0
21 0
22 20
23 40
24 45
25 32
26 10
27 0
28 0
29 27
30 60
31 78
32 72
33 45
34 12
35 0
36 0
37 35
38 84
39 120
40 128
41 105
42 60
43 14
44 0
45 0
46 44
47 112
48 171
49 200
50 190
51 144
52 77
53 16
54 0
55 0
56 54
57 144
58 231
59 288
60 300
61 264
62 189
63 96
64 18
65 0

List of values

[0, 0, 0, 0, 2, 0, 0, 5, 4, 0, 0, 9, 12, 6, 0, 0, 14, 24, 21, 8, 0, 0, 20, 40, 45, 32, 10, 0, 0, 27, 60, 78, 72, 45, 12, 0, 0, 35, 84, 120, 128, 105, 60, 14, 0, 0, 44, 112, 171, 200, 190, 144, 77, 16, 0, 0, 54, 144, 231, 288, 300, 264, 189, 96, 18, 0]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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