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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.

A245382 Primes whose product of digits is a semiprime.

Table of values

n a(n)
1 19
2 23
3 37
4 41
5 53
6 61
7 73
8 127
9 137
10 157
11 173
12 191
13 251
14 271
15 313
16 317
17 331
18 521
19 571
20 751
21 911
22 1123
23 1153
24 1213
25 1217
26 1231
27 1321
28 1531
29 1571
30 1721
31 2113
32 2131
33 2311
34 2711
35 3121
36 3511
37 4111
38 5113
39 5171
40 5711
41 7121
42 7151
43 7211
44 11119
45 11161
46 11173
47 11177
48 11213

List of values

[19, 23, 37, 41, 53, 61, 73, 127, 137, 157, 173, 191, 251, 271, 313, 317, 331, 521, 571, 751, 911, 1123, 1153, 1213, 1217, 1231, 1321, 1531, 1571, 1721, 2113, 2131, 2311, 2711, 3121, 3511, 4111, 5113, 5171, 5711, 7121, 7151, 7211, 11119, 11161, 11173, 11177, 11213]

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

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