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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.

A228469 a(n) = 6*a(n-2) + a(n-4), where a(0) = 2, a(1) = 8, a(2) = 13, a(3) = 49.

Table of values

n a(n)
0 2
1 8
2 13
3 49
4 80
5 302
6 493
7 1861
8 3038
9 11468
10 18721
11 70669
12 115364
13 435482
14 710905
15 2683561
16 4380794
17 16536848
18 26995669
19 101904649
20 166354808
21 627964742
22 1025124517
23 3869693101
24 6317101910
25 23846123348
26 38927735977
27 146946433189
28 239883517772
29 905524722482

List of values

[2, 8, 13, 49, 80, 302, 493, 1861, 3038, 11468, 18721, 70669, 115364, 435482, 710905, 2683561, 4380794, 16536848, 26995669, 101904649, 166354808, 627964742, 1025124517, 3869693101, 6317101910, 23846123348, 38927735977, 146946433189, 239883517772, 905524722482]

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

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