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.

A247313 a(n) = 5*a(n-1) - 2^n for n>0, a(0)=1.

Table of values

n a(n)
0 1
1 3
2 11
3 47
4 219
5 1063
6 5251
7 26127
8 130379
9 651383
10 3255891
11 16277407
12 81382939
13 406906503
14 2034516131
15 10172547887
16 50862673899
17 254313238423
18 1271565929971
19 6357829125567
20 31789144579259
21 158945720799143
22 794728599801411
23 3973642990618447

List of values

[1, 3, 11, 47, 219, 1063, 5251, 26127, 130379, 651383, 3255891, 16277407, 81382939, 406906503, 2034516131, 10172547887, 50862673899, 254313238423, 1271565929971, 6357829125567, 31789144579259, 158945720799143, 794728599801411, 3973642990618447]