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.

A028258 Expansion of 1/((1-2*x)*(1-4*x)(1-8*x)(1-16*x)).

Table of values

n a(n)
0 1
1 30
2 620
3 11160
4 188976
5 3108960
6 50434240
7 812507520
8 13044728576
9 209073047040
10 3348029967360
11 53591377582080
12 857645259698176
13 13723790036459520
14 219592368170516480
15 3513571713573027840
16 56217898008516427776
17 899492372901406310400

List of values

[1, 30, 620, 11160, 188976, 3108960, 50434240, 812507520, 13044728576, 209073047040, 3348029967360, 53591377582080, 857645259698176, 13723790036459520, 219592368170516480, 3513571713573027840, 56217898008516427776, 899492372901406310400]