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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.

A306689 Integers m with decimal expansion m = abc...z such that m is a multiple of both az and za; z may not be zero.

Table of values

n a(n)
1 11
2 22
3 33
4 44
5 55
6 66
7 77
8 88
9 99
10 121
11 242
12 363
13 484
14 1001
15 1092
16 1111
17 1207
18 1221
19 1275
20 1331
21 1441
22 1458
23 1512
24 1551
25 1661
26 1729
27 1771
28 1785
29 1881
30 1932
31 1991
32 2002
33 2112
34 2184
35 2222
36 2332
37 2442
38 2552
39 2662
40 2772
41 2882
42 2992
43 3003
44 3276
45 3333
46 3663
47 3993
48 4004
49 4032

List of values

[11, 22, 33, 44, 55, 66, 77, 88, 99, 121, 242, 363, 484, 1001, 1092, 1111, 1207, 1221, 1275, 1331, 1441, 1458, 1512, 1551, 1661, 1729, 1771, 1785, 1881, 1932, 1991, 2002, 2112, 2184, 2222, 2332, 2442, 2552, 2662, 2772, 2882, 2992, 3003, 3276, 3333, 3663, 3993, 4004, 4032]