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.

A357412 Number of nonempty subsets of {1..n} whose elements have an even harmonic mean.

Table of values

n a(n)
1 0
2 1
3 1
4 2
5 2
6 7
7 7
8 8
9 8
10 9
11 9
12 16
13 16
14 17
15 27
16 28
17 28
18 55
19 55
20 106
21 110
22 111
23 111
24 216
25 216
26 217
27 217
28 634
29 634
30 1155
31 1155
32 1156
33 2286
34 2287
35 3749

List of values

[0, 1, 1, 2, 2, 7, 7, 8, 8, 9, 9, 16, 16, 17, 27, 28, 28, 55, 55, 106, 110, 111, 111, 216, 216, 217, 217, 634, 634, 1155, 1155, 1156, 2286, 2287, 3749]