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.

A080881 a(n)*a(n+3) - a(n+1)*a(n+2) = 2^n, given a(0)=1, a(1)=2, a(2)=10.

Table of values

n a(n)
0 1
1 2
2 10
3 21
4 106
5 223
6 1126
7 2369
8 11962
9 25167
10 127078
11 267361
12 1350010
13 2840303
14 14341798
15 30173889
16 152359738
17 320551567
18 1618589926
19 3405371681
20 17195050234
21 36176882223
22 182671192870
23 384324217729
24 1940602920634

List of values

[1, 2, 10, 21, 106, 223, 1126, 2369, 11962, 25167, 127078, 267361, 1350010, 2840303, 14341798, 30173889, 152359738, 320551567, 1618589926, 3405371681, 17195050234, 36176882223, 182671192870, 384324217729, 1940602920634]