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.

A375372 Expansion of 1/( (1 + x) * (1 - x^2*(1 + x)^2) ).

Table of values

n a(n)
0 1
1 -1
2 2
3 0
4 2
5 2
6 5
7 5
8 12
9 16
10 28
11 44
12 73
13 115
14 190
15 304
16 494
17 798
18 1293
19 2089
20 3384
21 5472
22 8856
23 14328
24 23185
25 37511
26 60698
27 98208
28 158906
29 257114
30 416021
31 673133
32 1089156
33 1762288
34 2851444
35 4613732
36 7465177
37 12078907
38 19544086
39 31622992
40 51167078
41 82790070

List of values

[1, -1, 2, 0, 2, 2, 5, 5, 12, 16, 28, 44, 73, 115, 190, 304, 494, 798, 1293, 2089, 3384, 5472, 8856, 14328, 23185, 37511, 60698, 98208, 158906, 257114, 416021, 673133, 1089156, 1762288, 2851444, 4613732, 7465177, 12078907, 19544086, 31622992, 51167078, 82790070]

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

Content is available under The OEIS End-User License Agreement.