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.

A367578 a(0) = 0, a(1) = 1; for n > 1, a(n) = a(n-1) - CT(a(n-2),a(n-1)) if nonnegative and not already in the sequence, else a(n) = a(n-1) + CT(a(n-2),a(n-1)), where CT(a,b) is the Comma transform (cf. A367360) of a and b.

Table of values

n a(n)
0 0
1 1
2 2
3 14
4 35
5 78
6 21
7 103
8 92
9 53
10 28
11 60
12 146
13 145
14 84
15 26
16 68
17 134
18 215
19 173
20 122
21 91
22 62
23 46
24 22
25 84
26 56
27 11
28 72
29 55
30 30
31 83
32 75
33 38
34 91
35 180
36 169
37 168
38 77
39 164
40 93
41 44
42 10
43 51
44 56
45 41
46 105
47 94
48 153
49 112
50 81
51 109
52 98
53 197
54 116
55 45
56 109
57 58
58 153
59 234
60 202
61 160
62 139
63 138
64 47
65 131
66 202
67 190

List of values

[0, 1, 2, 14, 35, 78, 21, 103, 92, 53, 28, 60, 146, 145, 84, 26, 68, 134, 215, 173, 122, 91, 62, 46, 22, 84, 56, 11, 72, 55, 30, 83, 75, 38, 91, 180, 169, 168, 77, 164, 93, 44, 10, 51, 56, 41, 105, 94, 153, 112, 81, 109, 98, 197, 116, 45, 109, 58, 153, 234, 202, 160, 139, 138, 47, 131, 202, 190]