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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.

A345740 a(n) is the least prime p such that Omega(p + n) = n where Omega is A001222, or 0 if no such prime exists.

Table of values

n a(n)
1 2
2 2
3 5
4 131
5 43
6 15619
7 281
8 6553
9 503
10 137771
11 3061
12 244140613
13 8179
14 22143361
15 401393
16 199290359
17 491503
18 8392333984357
19 524269
20 3486784381
21 2097131
22 226640986043
23 28311529
24 303745269775390601
25 113246183
26 9885033776809
27 469762021
28 176518460300597
29 805306339
30 77737724676061053405079339

List of values

[2, 2, 5, 131, 43, 15619, 281, 6553, 503, 137771, 3061, 244140613, 8179, 22143361, 401393, 199290359, 491503, 8392333984357, 524269, 3486784381, 2097131, 226640986043, 28311529, 303745269775390601, 113246183, 9885033776809, 469762021, 176518460300597, 805306339, 77737724676061053405079339]

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

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