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.

A307858 Composite numbers k with its divisors having the property that the last digit of every divisor is the same as the first digit of the next divisor.

Table of values

n a(n)
1 121
2 1111
3 1207
4 1331
5 1441
6 1661
7 1991
8 10201
9 11231
10 11341
11 11561
12 11671
13 11917
14 12001
15 12221
16 12661
17 12767
18 12881
19 12937
20 12991
21 13211
22 13231
23 13541
24 14201
25 14311
26 14531
27 14641
28 14971
29 15191
30 15251
31 15851
32 15961
33 16181
34 16291
35 16621
36 16841
37 17161
38 17281
39 17309
40 17611

List of values

[121, 1111, 1207, 1331, 1441, 1661, 1991, 10201, 11231, 11341, 11561, 11671, 11917, 12001, 12221, 12661, 12767, 12881, 12937, 12991, 13211, 13231, 13541, 14201, 14311, 14531, 14641, 14971, 15191, 15251, 15851, 15961, 16181, 16291, 16621, 16841, 17161, 17281, 17309, 17611]