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.

A369780 a(n) = number of subsets of {1,2,...,n} that contain more primes than nonprimes.

Table of values

n a(n)
0 0
1 0
2 1
3 4
4 5
5 16
6 22
7 64
8 93
9 130
10 176
11 562
12 794
13 2380
14 3473
15 4944
16 6885
17 21778
18 31180
19 94184
20 137980
21 198440
22 280600
23 880970
24 1271626
25 1807781
26 2533987
27 3505699
28 4791323
29 16489546
30 22964087
31 75973189
32 107594213
33 150676186
34 208791332
35 286454524
36 389329652

List of values

[0, 0, 1, 4, 5, 16, 22, 64, 93, 130, 176, 562, 794, 2380, 3473, 4944, 6885, 21778, 31180, 94184, 137980, 198440, 280600, 880970, 1271626, 1807781, 2533987, 3505699, 4791323, 16489546, 22964087, 75973189, 107594213, 150676186, 208791332, 286454524, 389329652]