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.

A215575 a(n) = 7*(a(n-1) - a(n-2) - a(n-3)), with a(0)=3, a(1)=7, a(2)=35.

Table of values

n a(n)
0 3
1 7
2 35
3 175
4 931
5 5047
6 27587
7 151263
8 830403
9 4560871
10 25054435
11 137642127
12 756187747
13 4154438295
14 22824258947
15 125395430335
16 688917131651
17 3784882096583
18 20793986742179
19 114241312597615
20 627637106311971
21 3448212648805239
22 18944339609269571

List of values

[3, 7, 35, 175, 931, 5047, 27587, 151263, 830403, 4560871, 25054435, 137642127, 756187747, 4154438295, 22824258947, 125395430335, 688917131651, 3784882096583, 20793986742179, 114241312597615, 627637106311971, 3448212648805239, 18944339609269571]