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.

A267652 a(n) = 4*a(n - 1) + 4*a(n - 2) for n>1, a(0)=2, a(1)=3.

Table of values

n a(n)
0 2
1 3
2 20
3 92
4 448
5 2160
6 10432
7 50368
8 243200
9 1174272
10 5669888
11 27376640
12 132186112
13 638251008
14 3081748480
15 14879997952
16 71846985728
17 346907934720
18 1675019681792
19 8087710466048
20 39050920591360
21 188554524229632
22 910421779283968
23 4395905214054400
24 21225307973353472
25 102484852749631488

List of values

[2, 3, 20, 92, 448, 2160, 10432, 50368, 243200, 1174272, 5669888, 27376640, 132186112, 638251008, 3081748480, 14879997952, 71846985728, 346907934720, 1675019681792, 8087710466048, 39050920591360, 188554524229632, 910421779283968, 4395905214054400, 21225307973353472, 102484852749631488]