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.

A129143 Start with the empty sequence and append in step k the consecutive numbers 2^(k-1) to 2^(k-1)+k-1.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 5
6 6
7 8
8 9
9 10
10 11
11 16
12 17
13 18
14 19
15 20
16 32
17 33
18 34
19 35
20 36
21 37
22 64
23 65
24 66
25 67
26 68
27 69
28 70
29 128
30 129
31 130
32 131
33 132
34 133
35 134
36 135
37 256
38 257
39 258
40 259
41 260
42 261
43 262
44 263
45 264
46 512
47 513
48 514
49 515
50 516
51 517
52 518
53 519
54 520
55 521
56 1024
57 1025
58 1026
59 1027
60 1028

List of values

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 16, 17, 18, 19, 20, 32, 33, 34, 35, 36, 37, 64, 65, 66, 67, 68, 69, 70, 128, 129, 130, 131, 132, 133, 134, 135, 256, 257, 258, 259, 260, 261, 262, 263, 264, 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 1024, 1025, 1026, 1027, 1028]