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.

A022403 a(0)=a(1)=3; thereafter a(n) = a(n-1) + a(n-2) + 1.

Table of values

n a(n)
0 3
1 3
2 7
3 11
4 19
5 31
6 51
7 83
8 135
9 219
10 355
11 575
12 931
13 1507
14 2439
15 3947
16 6387
17 10335
18 16723
19 27059
20 43783
21 70843
22 114627
23 185471
24 300099
25 485571
26 785671
27 1271243
28 2056915
29 3328159
30 5385075
31 8713235
32 14098311
33 22811547
34 36909859
35 59721407
36 96631267
37 156352675
38 252983943
39 409336619
40 662320563

List of values

[3, 3, 7, 11, 19, 31, 51, 83, 135, 219, 355, 575, 931, 1507, 2439, 3947, 6387, 10335, 16723, 27059, 43783, 70843, 114627, 185471, 300099, 485571, 785671, 1271243, 2056915, 3328159, 5385075, 8713235, 14098311, 22811547, 36909859, 59721407, 96631267, 156352675, 252983943, 409336619, 662320563]