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.

A222423 Sum of (n AND k) for k = 0, 1, 2, ..., n, where AND is the bitwise AND operator.

Table of values

n a(n)
0 0
1 1
2 2
3 6
4 4
5 11
6 18
7 28
8 8
9 21
10 34
11 50
12 60
13 79
14 98
15 120
16 16
17 41
18 66
19 94
20 116
21 147
22 178
23 212
24 216
25 253
26 290
27 330
28 364
29 407
30 450
31 496
32 32
33 81
34 130
35 182
36 228
37 283
38 338
39 396
40 424
41 485
42 546
43 610
44 668
45 735
46 802
47 872
48 816
49 889
50 962
51 1038
52 1108
53 1187
54 1266
55 1348
56 1400

List of values

[0, 1, 2, 6, 4, 11, 18, 28, 8, 21, 34, 50, 60, 79, 98, 120, 16, 41, 66, 94, 116, 147, 178, 212, 216, 253, 290, 330, 364, 407, 450, 496, 32, 81, 130, 182, 228, 283, 338, 396, 424, 485, 546, 610, 668, 735, 802, 872, 816, 889, 962, 1038, 1108, 1187, 1266, 1348, 1400]