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.

A038111 Denominator of density of integers with smallest prime factor prime(n).

Table of values

n a(n)
1 2
2 6
3 15
4 105
5 385
6 1001
7 17017
8 323323
9 7436429
10 19605131
11 86822723
12 3212440751
13 131710070791
14 5663533044013
15 266186053068611
16 613385252723321
17 2783825377744303
18 5855632691117327
19 392327390304860909
20 27855244711645124539
21 2033432863950094091347
22 160641196252057433216413

List of values

[2, 6, 15, 105, 385, 1001, 17017, 323323, 7436429, 19605131, 86822723, 3212440751, 131710070791, 5663533044013, 266186053068611, 613385252723321, 2783825377744303, 5855632691117327, 392327390304860909, 27855244711645124539, 2033432863950094091347, 160641196252057433216413]

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

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