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.

A250032 a(n) is the numerator of the density of natural numbers m such that gcd(m,floor(m/n))>1.

Table of values

n a(n)
1 1
2 1
3 1
4 11
5 7
6 19
7 16
8 117
9 269
10 877
11 1003
12 11243
13 4261
14 56163
15 61883
16 199663
17 107339
18 919889
19 2009948
20 38444267
21 41354174
22 43432679
23 46078049
24 266161243
25 379669754
26 387106183
27 407127338
28 1258564159
29 1322304979
30 19229195413
31 40830611677
32 634491904301
33 2638247862269
34 2717256540199
35 2823435623209
36 2886468920107
37 1006725304509

List of values

[1, 1, 1, 11, 7, 19, 16, 117, 269, 877, 1003, 11243, 4261, 56163, 61883, 199663, 107339, 919889, 2009948, 38444267, 41354174, 43432679, 46078049, 266161243, 379669754, 387106183, 407127338, 1258564159, 1322304979, 19229195413, 40830611677, 634491904301, 2638247862269, 2717256540199, 2823435623209, 2886468920107, 1006725304509]

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

Content is available under The OEIS End-User License Agreement.