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.

A359817 Positions of odd terms in A359815, where A359815 is the Dirichlet inverse of A359770, which is the characteristic function for numbers k such that k and bigomega(k) are of different parity.

Table of values

n a(n)
1 1
2 2
3 4
4 9
5 12
6 15
7 16
8 18
9 20
10 21
11 25
12 28
13 30
14 32
15 33
16 35
17 36
18 39
19 42
20 44
21 49
22 50
23 51
24 52
25 55
26 57
27 60
28 65
29 66
30 68
31 69
32 70
33 76
34 77
35 78
36 84
37 85
38 87
39 91
40 92
41 93
42 95
43 98
44 100
45 102
46 108
47 110
48 111
49 114
50 115
51 116
52 119
53 121
54 123
55 124
56 128
57 129
58 130
59 132
60 133
61 135
62 138
63 140
64 141
65 143
66 145
67 148
68 154
69 155
70 156

List of values

[1, 2, 4, 9, 12, 15, 16, 18, 20, 21, 25, 28, 30, 32, 33, 35, 36, 39, 42, 44, 49, 50, 51, 52, 55, 57, 60, 65, 66, 68, 69, 70, 76, 77, 78, 84, 85, 87, 91, 92, 93, 95, 98, 100, 102, 108, 110, 111, 114, 115, 116, 119, 121, 123, 124, 128, 129, 130, 132, 133, 135, 138, 140, 141, 143, 145, 148, 154, 155, 156]