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.

A301653 Expansion of x*(1 + 2*x)/((1 - x)*(1 + x)*(1 - x - x^2)).

Table of values

n a(n)
0 0
1 1
2 3
3 5
4 10
5 16
6 28
7 45
8 75
9 121
10 198
11 320
12 520
13 841
14 1363
15 2205
16 3570
17 5776
18 9348
19 15125
20 24475
21 39601
22 64078
23 103680
24 167760
25 271441
26 439203
27 710645
28 1149850
29 1860496
30 3010348
31 4870845
32 7881195
33 12752041
34 20633238
35 33385280
36 54018520
37 87403801
38 141422323
39 228826125
40 370248450

List of values

[0, 1, 3, 5, 10, 16, 28, 45, 75, 121, 198, 320, 520, 841, 1363, 2205, 3570, 5776, 9348, 15125, 24475, 39601, 64078, 103680, 167760, 271441, 439203, 710645, 1149850, 1860496, 3010348, 4870845, 7881195, 12752041, 20633238, 33385280, 54018520, 87403801, 141422323, 228826125, 370248450]