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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.

A367687 a(n) is the first prime p such that n*p+1 is the product of n primes counted with multiplicity.

Table of values

n a(n)
1 2
2 7
3 17
4 47
5 79
6 9479
7 41
8 5923
9 199
10 33461
11 2141
12 69173177
13 11579
14 7655281
15 20753
16 64869017
17 233231
18 2622816297743
19 341477
20 14508897313
21 8138947
22 24565981007
23 27445337
24 90698401133219401
25 313566167
26 2552728502809
27 229909997
28 23451738297083
29 948780491
30 20677177107714198558766009
31 3390080033

List of values

[2, 7, 17, 47, 79, 9479, 41, 5923, 199, 33461, 2141, 69173177, 11579, 7655281, 20753, 64869017, 233231, 2622816297743, 341477, 14508897313, 8138947, 24565981007, 27445337, 90698401133219401, 313566167, 2552728502809, 229909997, 23451738297083, 948780491, 20677177107714198558766009, 3390080033]

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

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