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.

A192395 a(n) = 2*a(n-1) - 2*a(n-2) + a(n-3) + 2*a(n-4) starting with a(0..3) = 0, 0, 0, 1.

Table of values

n a(n)
0 0
1 0
2 0
3 1
4 2
5 2
6 1
7 2
8 8
9 17
10 22
11 22
12 33
13 78
14 156
15 233
16 298
17 442
18 833
19 1546
20 2464
21 3553
22 5390
23 9230
24 16161
25 26358
26 40404
27 62713
28 103298
29 174290
30 285505
31 451154
32 712184
33 1156145
34 1910086
35 3122374
36 5005089
37 7987806
38 12907980
39 21090185
40 34362394
41 55428010

List of values

[0, 0, 0, 1, 2, 2, 1, 2, 8, 17, 22, 22, 33, 78, 156, 233, 298, 442, 833, 1546, 2464, 3553, 5390, 9230, 16161, 26358, 40404, 62713, 103298, 174290, 285505, 451154, 712184, 1156145, 1910086, 3122374, 5005089, 7987806, 12907980, 21090185, 34362394, 55428010]