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.

A136298 a(n) = 3*a(n-1) - 4*a(n-3), with a(0)=1, a(1)=2, a(2)=4, a(3)=9.

Table of values

n a(n)
0 1
1 2
2 4
3 9
4 19
5 41
6 87
7 185
8 391
9 825
10 1735
11 3641
12 7623
13 15929
14 33223
15 69177
16 143815
17 298553
18 618951
19 1281593
20 2650567
21 5475897
22 11301319
23 23301689
24 48001479
25 98799161
26 203190727
27 417566265
28 857502151
29 1759743545
30 3608965575

List of values

[1, 2, 4, 9, 19, 41, 87, 185, 391, 825, 1735, 3641, 7623, 15929, 33223, 69177, 143815, 298553, 618951, 1281593, 2650567, 5475897, 11301319, 23301689, 48001479, 98799161, 203190727, 417566265, 857502151, 1759743545, 3608965575]