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.

A108635 Semiprimes with property that digits are in nonincreasing order.

Table of values

n a(n)
1 4
2 6
3 9
4 10
5 21
6 22
7 33
8 51
9 55
10 62
11 65
12 74
13 77
14 82
15 85
16 86
17 87
18 91
19 93
20 94
21 95
22 111
23 221
24 321
25 411
26 422
27 511
28 533
29 542
30 543
31 551
32 553
33 554
34 611
35 622
36 633
37 655
38 662
39 721
40 731
41 753
42 755
43 763
44 766
45 771
46 831
47 841
48 842
49 843
50 851
51 862
52 865
53 866
54 871
55 886
56 921
57 922

List of values

[4, 6, 9, 10, 21, 22, 33, 51, 55, 62, 65, 74, 77, 82, 85, 86, 87, 91, 93, 94, 95, 111, 221, 321, 411, 422, 511, 533, 542, 543, 551, 553, 554, 611, 622, 633, 655, 662, 721, 731, 753, 755, 763, 766, 771, 831, 841, 842, 843, 851, 862, 865, 866, 871, 886, 921, 922]