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.

A128131 a(n) = 2^A000096(n)*A128130(n).

Table of values

n a(n)
0 1
1 -4
2 0
3 0
4 -16384
5 1048576
6 0
7 0
8 17592186044416
9 -18014398509481984
10 0
11 0
12 -1237940039285380274899124224
13 20282409603651670423947251286016
14 0
15 0
16 5708990770823839524233143877797980545530986496

List of values

[1, -4, 0, 0, -16384, 1048576, 0, 0, 17592186044416, -18014398509481984, 0, 0, -1237940039285380274899124224, 20282409603651670423947251286016, 0, 0, 5708990770823839524233143877797980545530986496]

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

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