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.

A180330 Smallest amicable number of the form 2^n * p * q for which the larger member of the amicable pair has the same form, where p and q are distinct odd primes.

Table of values

n a(n)
2 2620
3 10744
4 66928
5 2082464
6 7677248
7 1750776704
8 749380864
9 7074650624
10 25937232896
11 161899964416
12 3949032574976
13 56691934109696
14 162222327218176
15 5469697508737024
16 21547979005558784
17 48336727662002176
18 2961911925308653568
19 5591728346540539904

List of values

[2620, 10744, 66928, 2082464, 7677248, 1750776704, 749380864, 7074650624, 25937232896, 161899964416, 3949032574976, 56691934109696, 162222327218176, 5469697508737024, 21547979005558784, 48336727662002176, 2961911925308653568, 5591728346540539904]

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

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