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.

A226112 Composite squarefree numbers n such that the ratio (n + 1/3)/(p(i) + 1/3) is an integer, where p(i) are the prime factors of n.

Table of values

n a(n)
1 133653
2 1280533
3 193638133
4 514276565
5 1421486733
6 1567953933
7 3857178453
8 3973200933
9 5411272533
10 7694639213
11 8021152533
12 8469827669
13 9820706133
14 15832804533
15 18238619373
16 22356801133
17 23037766613
18 25136796813
19 27315827733
20 32434329685
21 39817016633

List of values

[133653, 1280533, 193638133, 514276565, 1421486733, 1567953933, 3857178453, 3973200933, 5411272533, 7694639213, 8021152533, 8469827669, 9820706133, 15832804533, 18238619373, 22356801133, 23037766613, 25136796813, 27315827733, 32434329685, 39817016633]

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

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