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.

A143712 Numbers with at least two digits in which all digits except the rightmost are even and the rightmost is odd.

Table of values

n a(n)
1 21
2 23
3 25
4 27
5 29
6 41
7 43
8 45
9 47
10 49
11 61
12 63
13 65
14 67
15 69
16 81
17 83
18 85
19 87
20 89
21 201
22 203
23 205
24 207
25 209
26 221
27 223
28 225
29 227
30 229
31 241
32 243
33 245
34 247
35 249
36 261
37 263
38 265
39 267
40 269
41 281
42 283
43 285
44 287
45 289
46 401
47 403
48 405
49 407
50 409
51 421
52 423
53 425
54 427
55 429
56 441
57 443
58 445
59 447

List of values

[21, 23, 25, 27, 29, 41, 43, 45, 47, 49, 61, 63, 65, 67, 69, 81, 83, 85, 87, 89, 201, 203, 205, 207, 209, 221, 223, 225, 227, 229, 241, 243, 245, 247, 249, 261, 263, 265, 267, 269, 281, 283, 285, 287, 289, 401, 403, 405, 407, 409, 421, 423, 425, 427, 429, 441, 443, 445, 447]

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

Content is available under The OEIS End-User License Agreement.