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.

A014825 a(n) = 4*a(n-1) + n with n > 1, a(1)=1.

Table of values

n a(n)
1 1
2 6
3 27
4 112
5 453
6 1818
7 7279
8 29124
9 116505
10 466030
11 1864131
12 7456536
13 29826157
14 119304642
15 477218583
16 1908874348
17 7635497409
18 30541989654
19 122167958635
20 488671834560
21 1954687338261
22 7818749353066

List of values

[1, 6, 27, 112, 453, 1818, 7279, 29124, 116505, 466030, 1864131, 7456536, 29826157, 119304642, 477218583, 1908874348, 7635497409, 30541989654, 122167958635, 488671834560, 1954687338261, 7818749353066]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.