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.

A387081 Indices k such that lpf(s(k)) != lpf(s(k-1)), where s = A386482 and lpf = A020736.

Table of values

n a(n)
1 2
2 5
3 11
4 16
5 17
6 24
7 31
8 41
9 44
10 49
11 52
12 57
13 70
14 73
15 76
16 100
17 103
18 106
19 115
20 121
21 125
22 126
23 139
24 144
25 176
26 189
27 194
28 205
29 207
30 236
31 275
32 287
33 299
34 310
35 320
36 363
37 368
38 431
39 453
40 479
41 615
42 634
43 647
44 650
45 652
46 661
47 662
48 667
49 674
50 678
51 684
52 737
53 785
54 788
55 800
56 801

List of values

[2, 5, 11, 16, 17, 24, 31, 41, 44, 49, 52, 57, 70, 73, 76, 100, 103, 106, 115, 121, 125, 126, 139, 144, 176, 189, 194, 205, 207, 236, 275, 287, 299, 310, 320, 363, 368, 431, 453, 479, 615, 634, 647, 650, 652, 661, 662, 667, 674, 678, 684, 737, 785, 788, 800, 801]