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.

A272264 Numbers that become a different number when flipped upside down.

Table of values

n a(n)
1 6
2 9
3 16
4 18
5 19
6 61
7 66
8 68
9 81
10 86
11 89
12 91
13 98
14 99
15 106
16 108
17 109
18 116
19 118
20 119
21 161
22 166
23 168
24 169
25 186
26 188
27 189
28 191
29 196
30 198
31 199
32 601
33 606
34 608
35 611
36 616
37 618
38 661
39 666
40 668
41 669
42 681
43 686
44 688
45 691
46 696
47 698
48 699
49 801
50 806
51 809
52 811
53 816
54 819
55 861
56 866
57 868
58 869
59 881
60 886
61 889

List of values

[6, 9, 16, 18, 19, 61, 66, 68, 81, 86, 89, 91, 98, 99, 106, 108, 109, 116, 118, 119, 161, 166, 168, 169, 186, 188, 189, 191, 196, 198, 199, 601, 606, 608, 611, 616, 618, 661, 666, 668, 669, 681, 686, 688, 691, 696, 698, 699, 801, 806, 809, 811, 816, 819, 861, 866, 868, 869, 881, 886, 889]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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