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.

A086093 a(n) = 3^n + 2*n*4^(n-1).

Table of values

n a(n)
0 1
1 5
2 25
3 123
4 593
5 2803
6 13017
7 59531
8 268705
9 1199331
10 5301929
11 23245819
12 101194737
13 437801939
14 1883831161
15 8067412587
16 34402785089
17 146158028227
18 618862711113
19 2612502377435
20 10998603062161
21 46189948719795
22 193545427548185
23 809334701221963
24 3377982150064353

List of values

[1, 5, 25, 123, 593, 2803, 13017, 59531, 268705, 1199331, 5301929, 23245819, 101194737, 437801939, 1883831161, 8067412587, 34402785089, 146158028227, 618862711113, 2612502377435, 10998603062161, 46189948719795, 193545427548185, 809334701221963, 3377982150064353]