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.

A343424 Numbers k such that sopfr((k-1)!) is divisible by k, where sopfr(k) = A001414(k) = sum of primes, with repetition, dividing k.

Table of values

n a(n)
1 1
2 2
3 45
4 53
5 177
6 436
7 1239
8 3651
9 6463
10 6869
11 10753
12 19450
13 29721
14 33289
15 88907
16 93682
17 1137232
18 1516121
19 4361271
20 9428534
21 43778664
22 74738670
23 271442366
24 775223371
25 835126289
26 1736463189
27 3088442241
28 5054888590
29 11184483614
30 16993011938
31 30788570768
32 33342871740

List of values

[1, 2, 45, 53, 177, 436, 1239, 3651, 6463, 6869, 10753, 19450, 29721, 33289, 88907, 93682, 1137232, 1516121, 4361271, 9428534, 43778664, 74738670, 271442366, 775223371, 835126289, 1736463189, 3088442241, 5054888590, 11184483614, 16993011938, 30788570768, 33342871740]