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.

A104466 a(n) is the least k with n distinct prime factors such that the sum of its prime factors (counting multiplicity) divides k, or 0 if no such k exists. First member of A036844 with n distinct prime factors.

Table of values

n a(n)
1 2
2 0
3 30
4 840
5 2730
6 72930
7 870870
8 9699690
9 340510170
10 9592993410
11 265257422430
12 8624101075590
13 304250263527210
14 14299762385778870
15 1164365758518632670
16 43657174563782890110
17 1987938667108592728530
18 172494415819766906755890

List of values

[2, 0, 30, 840, 2730, 72930, 870870, 9699690, 340510170, 9592993410, 265257422430, 8624101075590, 304250263527210, 14299762385778870, 1164365758518632670, 43657174563782890110, 1987938667108592728530, 172494415819766906755890]

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

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