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.

A134136 a(n) = 2*a(n-2) + 4*a(n-3), with initial terms 0, 1, 1.

Table of values

n a(n)
0 0
1 1
2 1
3 2
4 6
5 8
6 20
7 40
8 72
9 160
10 304
11 608
12 1248
13 2432
14 4928
15 9856
16 19584
17 39424
18 78592
19 157184
20 314880
21 628736
22 1258496
23 2516992
24 5031936
25 10067968
26 20131840
27 40263680
28 80535552
29 161054720
30 322125824
31 644251648
32 1288470528
33 2577006592
34 5153947648
35 10307895296

List of values

[0, 1, 1, 2, 6, 8, 20, 40, 72, 160, 304, 608, 1248, 2432, 4928, 9856, 19584, 39424, 78592, 157184, 314880, 628736, 1258496, 2516992, 5031936, 10067968, 20131840, 40263680, 80535552, 161054720, 322125824, 644251648, 1288470528, 2577006592, 5153947648, 10307895296]