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.

A077851 Expansion of (1-x)^(-1)/(1 - 2*x - 2*x^3).

Table of values

n a(n)
0 1
1 3
2 7
3 17
4 41
5 97
6 229
7 541
8 1277
9 3013
10 7109
11 16773
12 39573
13 93365
14 220277
15 519701
16 1226133
17 2892821
18 6825045
19 16102357
20 37990357
21 89630805
22 211466325
23 498913365
24 1177088341
25 2777109333
26 6552045397
27 15458267477
28 36470753621
29 86045598037
30 203007731029

List of values

[1, 3, 7, 17, 41, 97, 229, 541, 1277, 3013, 7109, 16773, 39573, 93365, 220277, 519701, 1226133, 2892821, 6825045, 16102357, 37990357, 89630805, 211466325, 498913365, 1177088341, 2777109333, 6552045397, 15458267477, 36470753621, 86045598037, 203007731029]