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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.

A070550 a(n) = a(n-1) + a(n-3) + a(n-4), starting with a(0..3) = 1, 2, 2, 3.

Table of values

n a(n)
0 1
1 2
2 2
3 3
4 6
5 10
6 15
7 24
8 40
9 65
10 104
11 168
12 273
13 442
14 714
15 1155
16 1870
17 3026
18 4895
19 7920
20 12816
21 20737
22 33552
23 54288
24 87841
25 142130
26 229970
27 372099
28 602070
29 974170
30 1576239
31 2550408
32 4126648
33 6677057
34 10803704
35 17480760
36 28284465
37 45765226

List of values

[1, 2, 2, 3, 6, 10, 15, 24, 40, 65, 104, 168, 273, 442, 714, 1155, 1870, 3026, 4895, 7920, 12816, 20737, 33552, 54288, 87841, 142130, 229970, 372099, 602070, 974170, 1576239, 2550408, 4126648, 6677057, 10803704, 17480760, 28284465, 45765226]

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

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