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.

A117828 Start with 1 and repeatedly reverse the decimal digits and add 4 to get the next term.

Table of values

n a(n)
1 1
2 5
3 9
4 13
5 35
6 57
7 79
8 101
9 105
10 505
11 509
12 909
13 913
14 323
15 327
16 727
17 731
18 141
19 145
20 545
21 549
22 949
23 953
24 363
25 367
26 767
27 771
28 181
29 185
30 585
31 589
32 989
33 993
34 403
35 308
36 807
37 712
38 221
39 126
40 625
41 530
42 39
43 97
44 83
45 42
46 28
47 86
48 72
49 31
50 17
51 75
52 61
53 20
54 6
55 10
56 5
57 9
58 13
59 35
60 57
61 79
62 101
63 105
64 505
65 509
66 909
67 913
68 323
69 327
70 727
71 731

List of values

[1, 5, 9, 13, 35, 57, 79, 101, 105, 505, 509, 909, 913, 323, 327, 727, 731, 141, 145, 545, 549, 949, 953, 363, 367, 767, 771, 181, 185, 585, 589, 989, 993, 403, 308, 807, 712, 221, 126, 625, 530, 39, 97, 83, 42, 28, 86, 72, 31, 17, 75, 61, 20, 6, 10, 5, 9, 13, 35, 57, 79, 101, 105, 505, 509, 909, 913, 323, 327, 727, 731]