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.

A139288 2^(2p - 1)/2, where p is prime.

Table of values

n a(n)
1 4
2 16
3 256
4 4096
5 1048576
6 16777216
7 4294967296
8 68719476736
9 17592186044416
10 72057594037927936
11 1152921504606846976
12 4722366482869645213696
13 1208925819614629174706176
14 19342813113834066795298816

List of values

[4, 16, 256, 4096, 1048576, 16777216, 4294967296, 68719476736, 17592186044416, 72057594037927936, 1152921504606846976, 4722366482869645213696, 1208925819614629174706176, 19342813113834066795298816]