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.

A378230 Positions of 0's in A378226, where A278226 is XOR-Moebius transform of A318457, and A318457(n) = n XOR (sigma(n)-n).

Table of values

n a(n)
1 6
2 14
3 28
4 42
5 50
6 62
7 72
8 114
9 124
10 150
11 186
12 248
13 254
14 376
15 402
16 412
17 426
18 434
19 474
20 496
21 498
22 508
23 762
24 784
25 786
26 796
27 868
28 938
29 978
30 994
31 1002
32 1016
33 1302
34 1528
35 1568
36 1578
37 1626
38 1778
39 1834
40 1852
41 1888
42 1948
43 1988
44 2032
45 3056
46 3064
47 3094
48 3282
49 3350
50 3556
51 3568
52 3644
53 3682
54 3794
55 3858
56 3868
57 3882
58 3954
59 4064

List of values

[6, 14, 28, 42, 50, 62, 72, 114, 124, 150, 186, 248, 254, 376, 402, 412, 426, 434, 474, 496, 498, 508, 762, 784, 786, 796, 868, 938, 978, 994, 1002, 1016, 1302, 1528, 1568, 1578, 1626, 1778, 1834, 1852, 1888, 1948, 1988, 2032, 3056, 3064, 3094, 3282, 3350, 3556, 3568, 3644, 3682, 3794, 3858, 3868, 3882, 3954, 4064]