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.

A037681 Base-4 digits are, in order, the first n terms of the periodic sequence with initial period 1,0,3,2.

Table of values

n a(n)
1 1
2 4
3 19
4 78
5 313
6 1252
7 5011
8 20046
9 80185
10 320740
11 1282963
12 5131854
13 20527417
14 82109668
15 328438675
16 1313754702
17 5255018809
18 21020075236
19 84080300947
20 336321203790
21 1345284815161
22 5381139260644
23 21524557042579
24 86098228170318

List of values

[1, 4, 19, 78, 313, 1252, 5011, 20046, 80185, 320740, 1282963, 5131854, 20527417, 82109668, 328438675, 1313754702, 5255018809, 21020075236, 84080300947, 336321203790, 1345284815161, 5381139260644, 21524557042579, 86098228170318]