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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.

A298011 If n = Sum_{i=1..h} 2^b_i with 0 <= b_1 < ... < b_h, then a(n) = Sum_{i=1..h} i * 2^b_i.

Table of values

n a(n)
0 0
1 1
2 2
3 5
4 4
5 9
6 10
7 17
8 8
9 17
10 18
11 29
12 20
13 33
14 34
15 49
16 16
17 33
18 34
19 53
20 36
21 57
22 58
23 81
24 40
25 65
26 66
27 93
28 68
29 97
30 98
31 129
32 32
33 65
34 66
35 101
36 68
37 105
38 106
39 145
40 72
41 113
42 114
43 157
44 116
45 161
46 162
47 209
48 80
49 129
50 130
51 181
52 132
53 185
54 186
55 241
56 136
57 193
58 194
59 253
60 196

List of values

[0, 1, 2, 5, 4, 9, 10, 17, 8, 17, 18, 29, 20, 33, 34, 49, 16, 33, 34, 53, 36, 57, 58, 81, 40, 65, 66, 93, 68, 97, 98, 129, 32, 65, 66, 101, 68, 105, 106, 145, 72, 113, 114, 157, 116, 161, 162, 209, 80, 129, 130, 181, 132, 185, 186, 241, 136, 193, 194, 253, 196]