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.

A297815 Number of positive integers with n digits whose digit sum is equal to its digit product.

Table of values

n a(n)
1 9
2 1
3 6
4 12
5 40
6 30
7 84
8 224
9 144
10 45
11 605
12 495
13 1170
14 1092
15 210
16 240
17 2448
18 4896
19 15846
20 3420
21 1750
22 462
23 15939
24 0
25 8100
26 67925
27 80730
28 19656
29 11774
30 164430
31 930
32 29760
33 197472
34 0
35 0
36 1260
37 23976
38 50616
39 54834
40 395200
41 1248860
42 4253340
43 75852
44 0
45 42570

List of values

[9, 1, 6, 12, 40, 30, 84, 224, 144, 45, 605, 495, 1170, 1092, 210, 240, 2448, 4896, 15846, 3420, 1750, 462, 15939, 0, 8100, 67925, 80730, 19656, 11774, 164430, 930, 29760, 197472, 0, 0, 1260, 23976, 50616, 54834, 395200, 1248860, 4253340, 75852, 0, 42570]