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.

A356843 Numbers k such that the k-th composition in standard order covers an interval of positive integers (gapless) but contains no 1's.

Table of values

n a(n)
1 2
2 4
3 8
4 10
5 16
6 18
7 20
8 32
9 36
10 42
11 64
12 68
13 72
14 74
15 82
16 84
17 128
18 136
19 146
20 148
21 164
22 170
23 256
24 264
25 272
26 274
27 276
28 290
29 292
30 296
31 298
32 324
33 328
34 330
35 338
36 340
37 512
38 528
39 548
40 580
41 584
42 586
43 594
44 596
45 658
46 660
47 676
48 682
49 1024
50 1040
51 1056
52 1092
53 1096
54 1098

List of values

[2, 4, 8, 10, 16, 18, 20, 32, 36, 42, 64, 68, 72, 74, 82, 84, 128, 136, 146, 148, 164, 170, 256, 264, 272, 274, 276, 290, 292, 296, 298, 324, 328, 330, 338, 340, 512, 528, 548, 580, 584, 586, 594, 596, 658, 660, 676, 682, 1024, 1040, 1056, 1092, 1096, 1098]