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.

A229624 Positive integers k for which the length of shortest addition-subtraction chain is smaller than the length of shortest addition chain, i.e., A128998(k) < A003313(k).

Table of values

n a(n)
1 31
2 47
3 62
4 63
5 71
6 79
7 93
8 94
9 95
10 124
11 126
12 127
13 139
14 141
15 142
16 143
17 155
18 157
19 158
20 159
21 186
22 188
23 189
24 190
25 191
26 223
27 235
28 237
29 239
30 247
31 248
32 251
33 252
34 253
35 254
36 255
37 263
38 271
39 278
40 279
41 282
42 283
43 284
44 285
45 286
46 287
47 310
48 314
49 315
50 316
51 317
52 318
53 319
54 372

List of values

[31, 47, 62, 63, 71, 79, 93, 94, 95, 124, 126, 127, 139, 141, 142, 143, 155, 157, 158, 159, 186, 188, 189, 190, 191, 223, 235, 237, 239, 247, 248, 251, 252, 253, 254, 255, 263, 271, 278, 279, 282, 283, 284, 285, 286, 287, 310, 314, 315, 316, 317, 318, 319, 372]

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

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