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.

A125503 Smallest number k such that the numerator of the generalized harmonic number H(k,n) = Sum_{i=1..k} 1/i^n is a prime.

Table of values

n a(n)
1 2
2 2
3 3
4 2
5 23
6 73
7 15
8 2
9 3
10 5
11 13
12 57
13 3
14 171
15 5
16 2
17 21
18 7
19 55
20 8902
21 26
22 1298
23 115
24 139
25 3
26 2019
27 3
28 4
29 3
30 15
31 56
32 177

List of values

[2, 2, 3, 2, 23, 73, 15, 2, 3, 5, 13, 57, 3, 171, 5, 2, 21, 7, 55, 8902, 26, 1298, 115, 139, 3, 2019, 3, 4, 3, 15, 56, 177]