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.

A307624 Least number whose digits can be used to form exactly n distinct composite numbers (not necessarily using all digits).

Table of values

n a(n)
0 1
1 4
2 12
3 18
4 46
5 103
6 122
7 104
8 102
9 108
10 124
11 128
12 126
13 148
14 246
15 468
16 1002
17 1008
18 1137
19 1077
20 1014
21 1055
22 1044
23 1022
24 1124
25 1126
26 1079
27 1145
28 1037
29 1224
30 1266
31 1448
32 1379
33 1039
34 1367
35 1036
36 1057
37 1034
38 1027
39 1047
40 1024
41 1023
42 1025
43 1029
44 1026
45 1068
46 1247
47 1235
48 3579
49 1234
50 1257
51 1289
52 1239
53 1236
54 1278
55 1245

List of values

[1, 4, 12, 18, 46, 103, 122, 104, 102, 108, 124, 128, 126, 148, 246, 468, 1002, 1008, 1137, 1077, 1014, 1055, 1044, 1022, 1124, 1126, 1079, 1145, 1037, 1224, 1266, 1448, 1379, 1039, 1367, 1036, 1057, 1034, 1027, 1047, 1024, 1023, 1025, 1029, 1026, 1068, 1247, 1235, 3579, 1234, 1257, 1289, 1239, 1236, 1278, 1245]