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.

A110048 Expansion of 1/((1+2*x)*(1-4*x-4*x^2)).

Table of values

n a(n)
0 1
1 2
2 16
3 64
4 336
5 1568
6 7680
7 36864
8 178432
9 860672
10 4157440
11 20070400
12 96915456
13 467935232
14 2259419136
15 10909384704
16 52675280896
17 254338531328
18 1228055511040
19 5929575645184
20 28630525673472
21 138240403177472

List of values

[1, 2, 16, 64, 336, 1568, 7680, 36864, 178432, 860672, 4157440, 20070400, 96915456, 467935232, 2259419136, 10909384704, 52675280896, 254338531328, 1228055511040, 5929575645184, 28630525673472, 138240403177472]

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

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