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.

A377211 a(n) is the least number k such that A377208(k) = n, or -1 if no such number exists.

Table of values

n a(n)
0 1
1 4
2 12
3 24
4 180
5 1056
6 2592
7 15552
8 46656
9 544320
10 20528640
11 238085568
12 3547348992
13 46438023168
14 599501979648

List of values

[1, 4, 12, 24, 180, 1056, 2592, 15552, 46656, 544320, 20528640, 238085568, 3547348992, 46438023168, 599501979648]