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.

A078326 Numbers n such that n-1 and n are a pair of consecutive powerful numbers.

Table of values

n a(n)
1 9
2 289
3 676
4 9801
5 12168
6 235225
7 332929
8 465125
9 1825201
10 11309769
11 384199201
12 592192225
13 4931691076
14 5425069448
15 13051463049
16 221322261601
17 443365544449
18 865363202001
19 8192480787001
20 11968683934832
21 13325427460801
22 15061377048201
23 28821995554248

List of values

[9, 289, 676, 9801, 12168, 235225, 332929, 465125, 1825201, 11309769, 384199201, 592192225, 4931691076, 5425069448, 13051463049, 221322261601, 443365544449, 865363202001, 8192480787001, 11968683934832, 13325427460801, 15061377048201, 28821995554248]