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.

A350919 a(0) = 9, a(1) = 9, and a(n) = 3*a(n-1) - a(n-2) - 4 for n >= 2.

Table of values

n a(n)
0 9
1 9
2 14
3 29
4 69
5 174
6 449
7 1169
8 3054
9 7989
10 20909
11 54734
12 143289
13 375129
14 982094
15 2571149
16 6731349
17 17622894
18 46137329
19 120789089
20 316229934
21 827900709
22 2167472189
23 5674515854
24 14856075369
25 38893710249
26 101825055374
27 266581455869
28 697919312229
29 1827176480814
30 4783610130209
31 12523653909809
32 32787351599214
33 85838400887829
34 224727851064269

List of values

[9, 9, 14, 29, 69, 174, 449, 1169, 3054, 7989, 20909, 54734, 143289, 375129, 982094, 2571149, 6731349, 17622894, 46137329, 120789089, 316229934, 827900709, 2167472189, 5674515854, 14856075369, 38893710249, 101825055374, 266581455869, 697919312229, 1827176480814, 4783610130209, 12523653909809, 32787351599214, 85838400887829, 224727851064269]

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

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