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.

A052997 Expansion of (1+x-x^3)/((1-2*x)*(1-x^2)).

Table of values

n a(n)
0 1
1 3
2 7
3 14
4 29
5 58
6 117
7 234
8 469
9 938
10 1877
11 3754
12 7509
13 15018
14 30037
15 60074
16 120149
17 240298
18 480597
19 961194
20 1922389
21 3844778
22 7689557
23 15379114
24 30758229
25 61516458
26 123032917
27 246065834
28 492131669
29 984263338
30 1968526677

List of values

[1, 3, 7, 14, 29, 58, 117, 234, 469, 938, 1877, 3754, 7509, 15018, 30037, 60074, 120149, 240298, 480597, 961194, 1922389, 3844778, 7689557, 15379114, 30758229, 61516458, 123032917, 246065834, 492131669, 984263338, 1968526677]