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.

A374730 a(n) = n * binomial(floor(log_2(n)) + 1, 2).

Table of values

n a(n)
0 0
1 0
2 2
3 3
4 12
5 15
6 18
7 21
8 48
9 54
10 60
11 66
12 72
13 78
14 84
15 90
16 160
17 170
18 180
19 190
20 200
21 210
22 220
23 230
24 240
25 250
26 260
27 270
28 280
29 290
30 300
31 310
32 480
33 495
34 510
35 525
36 540
37 555
38 570
39 585
40 600
41 615
42 630
43 645
44 660
45 675
46 690
47 705
48 720
49 735
50 750
51 765
52 780
53 795
54 810
55 825
56 840

List of values

[0, 0, 2, 3, 12, 15, 18, 21, 48, 54, 60, 66, 72, 78, 84, 90, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 310, 480, 495, 510, 525, 540, 555, 570, 585, 600, 615, 630, 645, 660, 675, 690, 705, 720, 735, 750, 765, 780, 795, 810, 825, 840]