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.

A329640 Numbers n for which A329639(n) is equal to gcd(A329638(n), A329639(n)).

Table of values

n a(n)
1 1
2 9
3 18
4 27
5 45
6 54
7 70
8 75
9 84
10 125
11 135
12 144
13 153
14 198
15 279
16 366
17 390
18 392
19 423
20 459
21 747
22 837
23 855
24 858
25 891
26 927
27 1269
28 1341
29 1494
30 1503
31 1690
32 1899
33 2097
34 2241
35 2493
36 2604
37 2679
38 2763
39 2781
40 2888
41 2979
42 2988
43 3177
44 3411
45 3507
46 3879
47 4023
48 4041
49 4050
50 4482
51 4491
52 4509
53 4707
54 5067
55 5283
56 5463
57 5679
58 5697
59 5817
60 5877
61 5982
62 6093

List of values

[1, 9, 18, 27, 45, 54, 70, 75, 84, 125, 135, 144, 153, 198, 279, 366, 390, 392, 423, 459, 747, 837, 855, 858, 891, 927, 1269, 1341, 1494, 1503, 1690, 1899, 2097, 2241, 2493, 2604, 2679, 2763, 2781, 2888, 2979, 2988, 3177, 3411, 3507, 3879, 4023, 4041, 4050, 4482, 4491, 4509, 4707, 5067, 5283, 5463, 5679, 5697, 5817, 5877, 5982, 6093]