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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.

A319196 a(n) = 2^(n-1)*Fibonacci(n-3), n >= 0.

Table of values

n a(n)
0 1
1 -1
2 2
3 0
4 8
5 16
6 64
7 192
8 640
9 2048
10 6656
11 21504
12 69632
13 225280
14 729088
15 2359296
16 7634944
17 24707072
18 79953920
19 258736128
20 837287936
21 2709520384
22 8768192512
23 28374466560
24 91821703168
25 297141272576
26 961569357824
27 3111703805952
28 10069685043200
29 32586185310208
30 105451110793216

List of values

[1, -1, 2, 0, 8, 16, 64, 192, 640, 2048, 6656, 21504, 69632, 225280, 729088, 2359296, 7634944, 24707072, 79953920, 258736128, 837287936, 2709520384, 8768192512, 28374466560, 91821703168, 297141272576, 961569357824, 3111703805952, 10069685043200, 32586185310208, 105451110793216]

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

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