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.

A054486 Expansion of (1+2*x)/(1-3*x+x^2).

Table of values

n a(n)
0 1
1 5
2 14
3 37
4 97
5 254
6 665
7 1741
8 4558
9 11933
10 31241
11 81790
12 214129
13 560597
14 1467662
15 3842389
16 10059505
17 26336126
18 68948873
19 180510493
20 472582606
21 1237237325
22 3239129369
23 8480150782
24 22201322977
25 58123818149
26 152170131470
27 398386576261
28 1042989597313

List of values

[1, 5, 14, 37, 97, 254, 665, 1741, 4558, 11933, 31241, 81790, 214129, 560597, 1467662, 3842389, 10059505, 26336126, 68948873, 180510493, 472582606, 1237237325, 3239129369, 8480150782, 22201322977, 58123818149, 152170131470, 398386576261, 1042989597313]