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.

A108075 Triangle in A071945 with rows reversed.

Table of values

n a(n)
0 1
1 1
2 1
3 3
4 3
5 1
6 9
7 9
8 5
9 1
10 31
11 31
12 19
13 7
14 1
15 113
16 113
17 73
18 33
19 9
20 1
21 431
22 431
23 287
24 143
25 51
26 11
27 1
28 1697
29 1697
30 1153
31 609
32 249
33 73
34 13
35 1
36 6847
37 6847
38 4719
39 2591
40 1151
41 399
42 99
43 15
44 1
45 28161
46 28161
47 19617
48 11073
49 5201
50 2001
51 601
52 129
53 17
54 1
55 117631
56 117631
57 82623

List of values

[1, 1, 1, 3, 3, 1, 9, 9, 5, 1, 31, 31, 19, 7, 1, 113, 113, 73, 33, 9, 1, 431, 431, 287, 143, 51, 11, 1, 1697, 1697, 1153, 609, 249, 73, 13, 1, 6847, 6847, 4719, 2591, 1151, 399, 99, 15, 1, 28161, 28161, 19617, 11073, 5201, 2001, 601, 129, 17, 1, 117631, 117631, 82623]