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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.

A278243 Filter-sequence for Stern polynomials: Least number with the same prime signature as A260443(n).

Table of values

n a(n)
0 1
1 2
2 2
3 6
4 2
5 12
6 6
7 30
8 2
9 60
10 12
11 120
12 6
13 180
14 30
15 210
16 2
17 420
18 60
19 1080
20 12
21 2160
22 120
23 2520
24 6
25 2520
26 180
27 7560
28 30
29 6300
30 210
31 2310
32 2
33 4620
34 420
35 37800
36 60
37 90720
38 1080
39 75600
40 12
41 226800
42 2160
43 544320
44 120
45 453600
46 2520
47 138600
48 6
49 138600
50 2520
51 756000
52 180
53 2268000
54 7560
55 831600
56 30
57 415800
58 6300
59 2079000
60 210
61 485100
62 2310
63 30030
64 2
65 60060
66 4620

List of values

[1, 2, 2, 6, 2, 12, 6, 30, 2, 60, 12, 120, 6, 180, 30, 210, 2, 420, 60, 1080, 12, 2160, 120, 2520, 6, 2520, 180, 7560, 30, 6300, 210, 2310, 2, 4620, 420, 37800, 60, 90720, 1080, 75600, 12, 226800, 2160, 544320, 120, 453600, 2520, 138600, 6, 138600, 2520, 756000, 180, 2268000, 7560, 831600, 30, 415800, 6300, 2079000, 210, 485100, 2310, 30030, 2, 60060, 4620]

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