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.

A001608 Perrin sequence (or Ondrej Such sequence): a(n) = a(n-2) + a(n-3) with a(0) = 3, a(1) = 0, a(2) = 2.

Table of values

n a(n)
0 3
1 0
2 2
3 3
4 2
5 5
6 5
7 7
8 10
9 12
10 17
11 22
12 29
13 39
14 51
15 68
16 90
17 119
18 158
19 209
20 277
21 367
22 486
23 644
24 853
25 1130
26 1497
27 1983
28 2627
29 3480
30 4610
31 6107
32 8090
33 10717
34 14197
35 18807
36 24914
37 33004
38 43721
39 57918
40 76725
41 101639
42 134643
43 178364
44 236282
45 313007
46 414646
47 549289

List of values

[3, 0, 2, 3, 2, 5, 5, 7, 10, 12, 17, 22, 29, 39, 51, 68, 90, 119, 158, 209, 277, 367, 486, 644, 853, 1130, 1497, 1983, 2627, 3480, 4610, 6107, 8090, 10717, 14197, 18807, 24914, 33004, 43721, 57918, 76725, 101639, 134643, 178364, 236282, 313007, 414646, 549289]