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.

A078484 G.f.: -x*(1-2*x+2*x^2)/(2*x^3-4*x^2+4*x-1).

Table of values

n a(n)
0 0
1 1
2 2
3 6
4 18
5 52
6 148
7 420
8 1192
9 3384
10 9608
11 27280
12 77456
13 219920
14 624416
15 1772896
16 5033760
17 14292288
18 40579904
19 115217984
20 327136896
21 928835456
22 2637230208
23 7487852800
24 21260161280
25 60363694336
26 171389837824
27 486624896512
28 1381667623424
29 3922950583296

List of values

[0, 1, 2, 6, 18, 52, 148, 420, 1192, 3384, 9608, 27280, 77456, 219920, 624416, 1772896, 5033760, 14292288, 40579904, 115217984, 327136896, 928835456, 2637230208, 7487852800, 21260161280, 60363694336, 171389837824, 486624896512, 1381667623424, 3922950583296]

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

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