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.

A195460 a(n) = 2^(2*n+1) - 3*2^n - 1.

Table of values

n a(n)
1 1
2 19
3 103
4 463
5 1951
6 7999
7 32383
8 130303
9 522751
10 2094079
11 8382463
12 33542143
13 134193151
14 536821759
15 2147385343
16 8589737983
17 34359345151
18 137438167039
19 549754241023
20 2199020109823
21 8796086730751
22 35184359505919
23 140737463189503

List of values

[1, 19, 103, 463, 1951, 7999, 32383, 130303, 522751, 2094079, 8382463, 33542143, 134193151, 536821759, 2147385343, 8589737983, 34359345151, 137438167039, 549754241023, 2199020109823, 8796086730751, 35184359505919, 140737463189503]