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.

A290154 Smallest number k such that exactly half the numbers in [1..k] are prime(n)-smooth.

Table of values

n a(n)
1 6
2 20
3 42
4 78
5 118
6 184
7 248
8 332
9 428
10 534
11 654
12 772
13 906
14 1052
15 1208
16 1388
17 1562
18 1754
19 1958
20 2164
21 2396
22 2638
23 2896
24 3144
25 3424
26 3682
27 3986
28 4304
29 4622
30 4976
31 5286
32 5652
33 6002
34 6374
35 6748
36 7148
37 7532
38 7934
39 8356
40 8786
41 9224
42 9684
43 10158
44 10618
45 11114
46 11604

List of values

[6, 20, 42, 78, 118, 184, 248, 332, 428, 534, 654, 772, 906, 1052, 1208, 1388, 1562, 1754, 1958, 2164, 2396, 2638, 2896, 3144, 3424, 3682, 3986, 4304, 4622, 4976, 5286, 5652, 6002, 6374, 6748, 7148, 7532, 7934, 8356, 8786, 9224, 9684, 10158, 10618, 11114, 11604]

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

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