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.

A249741 Sieve of Eratosthenes minus one: a(n) = A083221(n+1) - 1.

Table of values

n a(n)
1 1
2 3
3 2
4 5
5 8
6 4
7 7
8 14
9 24
10 6
11 9
12 20
13 34
14 48
15 10
16 11
17 26
18 54
19 76
20 120
21 12
22 13
23 32
24 64
25 90
26 142
27 168
28 16
29 15
30 38
31 84
32 118
33 186
34 220
35 288
36 18
37 17
38 44
39 94
40 132
41 208
42 246
43 322
44 360
45 22
46 19
47 50
48 114
49 160
50 252
51 298
52 390
53 436
54 528
55 28
56 21
57 56
58 124
59 202
60 318
61 376
62 492
63 550
64 666
65 840
66 30
67 23
68 62
69 144
70 216
71 340
72 402
73 526
74 588
75 712
76 898
77 960
78 36
79 25

List of values

[1, 3, 2, 5, 8, 4, 7, 14, 24, 6, 9, 20, 34, 48, 10, 11, 26, 54, 76, 120, 12, 13, 32, 64, 90, 142, 168, 16, 15, 38, 84, 118, 186, 220, 288, 18, 17, 44, 94, 132, 208, 246, 322, 360, 22, 19, 50, 114, 160, 252, 298, 390, 436, 528, 28, 21, 56, 124, 202, 318, 376, 492, 550, 666, 840, 30, 23, 62, 144, 216, 340, 402, 526, 588, 712, 898, 960, 36, 25]