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.

A138231 A009545 alternated with its first differences.

Table of values

n a(n)
0 0
1 1
2 1
3 1
4 2
5 0
6 2
7 -2
8 0
9 -4
10 -4
11 -4
12 -8
13 0
14 -8
15 8
16 0
17 16
18 16
19 16
20 32
21 0
22 32
23 -32
24 0
25 -64
26 -64
27 -64
28 -128
29 0
30 -128
31 128
32 0
33 256
34 256
35 256
36 512
37 0
38 512
39 -512
40 0
41 -1024
42 -1024
43 -1024
44 -2048
45 0
46 -2048
47 2048
48 0
49 4096
50 4096
51 4096
52 8192
53 0
54 8192
55 -8192
56 0
57 -16384
58 -16384

List of values

[0, 1, 1, 1, 2, 0, 2, -2, 0, -4, -4, -4, -8, 0, -8, 8, 0, 16, 16, 16, 32, 0, 32, -32, 0, -64, -64, -64, -128, 0, -128, 128, 0, 256, 256, 256, 512, 0, 512, -512, 0, -1024, -1024, -1024, -2048, 0, -2048, 2048, 0, 4096, 4096, 4096, 8192, 0, 8192, -8192, 0, -16384, -16384]

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

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