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.

A005320 a(n) = 4*a(n-1) - a(n-2), with a(0) = 0, a(1) = 3.

Table of values

n a(n)
0 0
1 3
2 12
3 45
4 168
5 627
6 2340
7 8733
8 32592
9 121635
10 453948
11 1694157
12 6322680
13 23596563
14 88063572
15 328657725
16 1226567328
17 4577611587
18 17083879020
19 63757904493
20 237947738952
21 888033051315
22 3314184466308
23 12368704813917
24 46160634789360
25 172273834343523
26 642934702584732
27 2399464975995405
28 8954925201396888
29 33420235829592147

List of values

[0, 3, 12, 45, 168, 627, 2340, 8733, 32592, 121635, 453948, 1694157, 6322680, 23596563, 88063572, 328657725, 1226567328, 4577611587, 17083879020, 63757904493, 237947738952, 888033051315, 3314184466308, 12368704813917, 46160634789360, 172273834343523, 642934702584732, 2399464975995405, 8954925201396888, 33420235829592147]

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

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