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.

A193885 a(n) = 3*a(n-1) - 3*a(n-2) + a(n-3) - a(n-4), n>=4; a(0) = 1, a(1) = 1, a(2) = 2, a(3) = 3.

Table of values

n a(n)
0 1
1 1
2 2
3 3
4 3
5 1
6 -5
7 -18
8 -41
9 -75
10 -115
11 -143
12 -118
13 35
14 431
15 1213
16 2499
17 4254
18 6047
19 6665
20 3609
21 -7375
22 -32334
23 -77933
24 -147781
25 -234503
26 -305765
27 -283634
28 -20329
29 718653
30 2239077
31 4824577
32 8495482
33 12533139
34 14698471
35 10166901
36 -9557053
37 -57006530

List of values

[1, 1, 2, 3, 3, 1, -5, -18, -41, -75, -115, -143, -118, 35, 431, 1213, 2499, 4254, 6047, 6665, 3609, -7375, -32334, -77933, -147781, -234503, -305765, -283634, -20329, 718653, 2239077, 4824577, 8495482, 12533139, 14698471, 10166901, -9557053, -57006530]