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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.

A252922 a(n) = sigma(n-1) + sigma(n-2) + sigma(n-3), with a(1)=0, a(2)=1, a(3)=4.

Table of values

n a(n)
1 0
2 1
3 4
4 8
5 14
6 17
7 25
8 26
9 35
10 36
11 46
12 43
13 58
14 54
15 66
16 62
17 79
18 73
19 88
20 77
21 101
22 94
23 110
24 92
25 120
26 115
27 133
28 113
29 138
30 126
31 158
32 134
33 167
34 143
35 165
36 150
37 193
38 177
39 189
40 154
41 206
42 188
43 228
44 182
45 224
46 206
47 234
48 198
49 244
50 229
51 274
52 222
53 263
54 224
55 272
56 246
57 312
58 272
59 290
60 230
61 318
62 290
63 326
64 262
65 327
66 315
67 355
68 296

List of values

[0, 1, 4, 8, 14, 17, 25, 26, 35, 36, 46, 43, 58, 54, 66, 62, 79, 73, 88, 77, 101, 94, 110, 92, 120, 115, 133, 113, 138, 126, 158, 134, 167, 143, 165, 150, 193, 177, 189, 154, 206, 188, 228, 182, 224, 206, 234, 198, 244, 229, 274, 222, 263, 224, 272, 246, 312, 272, 290, 230, 318, 290, 326, 262, 327, 315, 355, 296]

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

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