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.

A265611 a(n) = a(n-1) + floor((n-1)/2) - (-1)^n + 2 for n>=2, a(0)=1, a(1)=3.

Table of values

n a(n)
0 1
1 3
2 4
3 8
4 10
5 15
6 18
7 24
8 28
9 35
10 40
11 48
12 54
13 63
14 70
15 80
16 88
17 99
18 108
19 120
20 130
21 143
22 154
23 168
24 180
25 195
26 208
27 224
28 238
29 255
30 270
31 288
32 304
33 323
34 340
35 360
36 378
37 399
38 418
39 440
40 460
41 483
42 504
43 528
44 550
45 575
46 598
47 624
48 648
49 675
50 700
51 728
52 754
53 783
54 810
55 840

List of values

[1, 3, 4, 8, 10, 15, 18, 24, 28, 35, 40, 48, 54, 63, 70, 80, 88, 99, 108, 120, 130, 143, 154, 168, 180, 195, 208, 224, 238, 255, 270, 288, 304, 323, 340, 360, 378, 399, 418, 440, 460, 483, 504, 528, 550, 575, 598, 624, 648, 675, 700, 728, 754, 783, 810, 840]