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.

A290572 Least number that is the start of a gap of size n between numbers that are either prime or twice a prime (A001751).

Table of values

n a(n)
1 2
2 11
3 7
4 67
5 53
6 47
7 514
8 401
9 317
10 181
11 467
12 526
13 1069
14 2819
15 1262
16 3142
17 1382
18 1913
19 1327
20 4178
21 2477
22 9697
23 8123
24 8329
25 3274
26 11213
27 21031
28 5119
29 16382
30 13063
31 20446
32 44417
33 22193
34 37747
35 12854
36 46957
37 35617
38 63863
39 48679
40 20809
41 76166
42 39251
43 110359
44 59282
45 136898
46 212923
47 143006

List of values

[2, 11, 7, 67, 53, 47, 514, 401, 317, 181, 467, 526, 1069, 2819, 1262, 3142, 1382, 1913, 1327, 4178, 2477, 9697, 8123, 8329, 3274, 11213, 21031, 5119, 16382, 13063, 20446, 44417, 22193, 37747, 12854, 46957, 35617, 63863, 48679, 20809, 76166, 39251, 110359, 59282, 136898, 212923, 143006]

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

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