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.

A376585 a(n) = 2^(2*n - 1) - 2^(n - 1)*(n - 1).

Table of values

n a(n)
0 1
1 2
2 6
3 24
4 104
5 448
6 1888
7 7808
8 31872
9 129024
10 519680
11 2086912
12 8366080
13 33505280
14 134111232
15 536641536
16 2146992128
17 8588886016
18 34357510144
19 137434234880
20 549745852416
21 2199002284032
22 8796048982016
23 35184279814144
24 140737295417344
25 562949550768128
26 2251798974824448

List of values

[1, 2, 6, 24, 104, 448, 1888, 7808, 31872, 129024, 519680, 2086912, 8366080, 33505280, 134111232, 536641536, 2146992128, 8588886016, 34357510144, 137434234880, 549745852416, 2199002284032, 8796048982016, 35184279814144, 140737295417344, 562949550768128, 2251798974824448]