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.

A102463 a(n) is the number of distinct values of (Sum_{i=1..r} x_i)!/(Product_{i=1..r} x_i!), where (x_1, ..., x_r) is an r-tuple of nonnegative integers with Sum_{i=1..r} i*x_i = n.

Table of values

n a(n)
1 1
2 1
3 2
4 3
5 4
6 6
7 8
8 11
9 13
10 18
11 21
12 30
13 33
14 40
15 49
16 58
17 68
18 79
19 94
20 110
21 128
22 149
23 168
24 197
25 217
26 253
27 282
28 328
29 360
30 421
31 452
32 520
33 567
34 652
35 692
36 812
37 868
38 980
39 1053
40 1188
41 1278
42 1449
43 1545
44 1731
45 1837
46 2081
47 2185
48 2457
49 2598
50 2901
51 3062
52 3421
53 3603
54 4002
55 4200

List of values

[1, 1, 2, 3, 4, 6, 8, 11, 13, 18, 21, 30, 33, 40, 49, 58, 68, 79, 94, 110, 128, 149, 168, 197, 217, 253, 282, 328, 360, 421, 452, 520, 567, 652, 692, 812, 868, 980, 1053, 1188, 1278, 1449, 1545, 1731, 1837, 2081, 2185, 2457, 2598, 2901, 3062, 3421, 3603, 4002, 4200]