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.

A162484 a(1) = 2, a(2) = 8; a(n) = 2 a(n - 1) + a(n - 2) - 4*(n mod 2).

Table of values

n a(n)
1 2
2 8
3 14
4 36
5 82
6 200
7 478
8 1156
9 2786
10 6728
11 16238
12 39204
13 94642
14 228488
15 551614
16 1331716
17 3215042
18 7761800
19 18738638
20 45239076
21 109216786
22 263672648
23 636562078
24 1536796804
25 3710155682
26 8957108168
27 21624372014
28 52205852196
29 126036076402
30 304278005000

List of values

[2, 8, 14, 36, 82, 200, 478, 1156, 2786, 6728, 16238, 39204, 94642, 228488, 551614, 1331716, 3215042, 7761800, 18738638, 45239076, 109216786, 263672648, 636562078, 1536796804, 3710155682, 8957108168, 21624372014, 52205852196, 126036076402, 304278005000]

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

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