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.

A249300 Composite numbers whose concatenation of their aliquot parts, in ascending order, is a palindrome.

Table of values

n a(n)
1 93
2 121
3 393
4 497
5 755
6 842
7 961
8 993
9 1042
10 1255
11 1293
12 1642
13 1681
14 1893
15 1897
16 3721
17 3755
18 3997
19 4043
20 4061
21 4442
22 5041
23 5755
24 6797
25 8197
26 8842
27 9993
28 11042
29 11255
30 16593
31 17309
32 17642
33 22255
34 23221
35 23597
36 26242
37 26493
38 26797
39 29793
40 30043
41 30242
42 30383

List of values

[93, 121, 393, 497, 755, 842, 961, 993, 1042, 1255, 1293, 1642, 1681, 1893, 1897, 3721, 3755, 3997, 4043, 4061, 4442, 5041, 5755, 6797, 8197, 8842, 9993, 11042, 11255, 16593, 17309, 17642, 22255, 23221, 23597, 26242, 26493, 26797, 29793, 30043, 30242, 30383]