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.

A101236 Smallest i such that i*2^(2)-1, ..., i*2^(n+2)-1 are primes.

Table of values

n a(n)
0 1
1 1
2 3
3 45
4 45
5 15855
6 280665
7 4774980
8 4393585185
9 6522452145
10 166260770280
11 4321816939440
12 15939674132892510
13 22654052989616460555
14 22654052989616460555
15 202608454566431632290

List of values

[1, 1, 3, 45, 45, 15855, 280665, 4774980, 4393585185, 6522452145, 166260770280, 4321816939440, 15939674132892510, 22654052989616460555, 22654052989616460555, 202608454566431632290]