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.

A229221 Numbers k such that k - (product of digits of k) is prime.

Table of values

n a(n)
1 21
2 23
3 27
4 29
5 41
6 43
7 47
8 49
9 81
10 83
11 87
12 89
13 101
14 103
15 107
16 109
17 127
18 141
19 143
20 149
21 181
22 187
23 223
24 227
25 229
26 241
27 247
28 251
29 253
30 263
31 271
32 277
33 293
34 299
35 307
36 343
37 347
38 349
39 367
40 383
41 389
42 401
43 409
44 413
45 417
46 419
47 431
48 433
49 437
50 439
51 451
52 457
53 471
54 473
55 477
56 479
57 481
58 487
59 503
60 509
61 527
62 529
63 541

List of values

[21, 23, 27, 29, 41, 43, 47, 49, 81, 83, 87, 89, 101, 103, 107, 109, 127, 141, 143, 149, 181, 187, 223, 227, 229, 241, 247, 251, 253, 263, 271, 277, 293, 299, 307, 343, 347, 349, 367, 383, 389, 401, 409, 413, 417, 419, 431, 433, 437, 439, 451, 457, 471, 473, 477, 479, 481, 487, 503, 509, 527, 529, 541]

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

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