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.

A136290 a(0)=1, a(1)=3, a(2)=9, a(3)=12, a(4)=15; thereafter a(n) = a(n-1) + a(n-3) - a(n-4).

Table of values

n a(n)
0 1
1 3
2 9
3 12
4 15
5 21
6 24
7 27
8 33
9 36
10 39
11 45
12 48
13 51
14 57
15 60
16 63
17 69
18 72
19 75
20 81
21 84
22 87
23 93
24 96
25 99
26 105
27 108
28 111
29 117
30 120
31 123
32 129
33 132
34 135
35 141
36 144
37 147
38 153
39 156
40 159
41 165
42 168
43 171
44 177
45 180
46 183
47 189
48 192
49 195
50 201
51 204
52 207
53 213
54 216
55 219
56 225
57 228
58 231
59 237

List of values

[1, 3, 9, 12, 15, 21, 24, 27, 33, 36, 39, 45, 48, 51, 57, 60, 63, 69, 72, 75, 81, 84, 87, 93, 96, 99, 105, 108, 111, 117, 120, 123, 129, 132, 135, 141, 144, 147, 153, 156, 159, 165, 168, 171, 177, 180, 183, 189, 192, 195, 201, 204, 207, 213, 216, 219, 225, 228, 231, 237]

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

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