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.

A077946 Expansion of 1/(1 - x - 2*x^2 - 2*x^3).

Table of values

n a(n)
0 1
1 1
2 3
3 7
4 15
5 35
6 79
7 179
8 407
9 923
10 2095
11 4755
12 10791
13 24491
14 55583
15 126147
16 286295
17 649755
18 1474639
19 3346739
20 7595527
21 17238283
22 39122815
23 88790435
24 201512631
25 457339131
26 1037945263
27 2355648787
28 5346217575
29 12133405675
30 27537138399
31 62496384899
32 141837473047

List of values

[1, 1, 3, 7, 15, 35, 79, 179, 407, 923, 2095, 4755, 10791, 24491, 55583, 126147, 286295, 649755, 1474639, 3346739, 7595527, 17238283, 39122815, 88790435, 201512631, 457339131, 1037945263, 2355648787, 5346217575, 12133405675, 27537138399, 62496384899, 141837473047]