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.

A102465 a(n) = number of distinct values of Product_{i=1..r} x_i!*i!^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 4
5 4
6 7
7 7
8 13
9 17
10 23
11 26
12 40
13 45
14 60
15 64
16 102
17 115
18 148
19 169
20 225
21 261
22 337
23 375
24 470
25 552
26 668
27 780
28 954
29 1078
30 1331
31 1469
32 1811
33 2055
34 2475
35 2776
36 3343
37 3764
38 4447
39 4983
40 5898
41 6622
42 7771
43 8646
44 10192
45 11403
46 13238
47 14680
48 17011
49 19010
50 21877

List of values

[1, 1, 2, 4, 4, 7, 7, 13, 17, 23, 26, 40, 45, 60, 64, 102, 115, 148, 169, 225, 261, 337, 375, 470, 552, 668, 780, 954, 1078, 1331, 1469, 1811, 2055, 2475, 2776, 3343, 3764, 4447, 4983, 5898, 6622, 7771, 8646, 10192, 11403, 13238, 14680, 17011, 19010, 21877]