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.

A015980 Four iterations of Reverse and Add are needed to reach a palindrome.

Table of values

n a(n)
0 69
1 78
2 87
3 96
4 174
5 175
6 181
7 183
8 191
9 192
10 195
11 273
12 274
13 280
14 282
15 290
16 291
17 294
18 372
19 373
20 381
21 390
22 393
23 471
24 472
25 480
26 492
27 539
28 570
29 571
30 579
31 591
32 599
33 629
34 638
35 649
36 670
37 678
38 679
39 690
40 698
41 699
42 728
43 729
44 737
45 748
46 749
47 769
48 777

List of values

[69, 78, 87, 96, 174, 175, 181, 183, 191, 192, 195, 273, 274, 280, 282, 290, 291, 294, 372, 373, 381, 390, 393, 471, 472, 480, 492, 539, 570, 571, 579, 591, 599, 629, 638, 649, 670, 678, 679, 690, 698, 699, 728, 729, 737, 748, 749, 769, 777]