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.

A286240 Compound filter: a(n) = P(A278222(n), A278222(1+n)), where P(n,k) is sequence A000027 used as a pairing function.

Table of values

n a(n)
0 2
1 5
2 12
3 14
4 23
5 42
6 59
7 44
8 23
9 61
10 142
11 117
12 109
13 183
14 261
15 152
16 23
17 61
18 142
19 148
20 601
21 850
22 607
23 375
24 109
25 265
26 1093
27 939
28 473
29 765
30 1097
31 560
32 23
33 61
34 142
35 148
36 601
37 850
38 607
39 430
40 601
41 1741
42 3946
43 2545
44 2497
45 3463
46 2509
47 1323
48 109
49 265
50 1093
51 1117
52 2497
53 4525
54 5707
55 3153
56 473
57 1105
58 4489
59 3813
60 1969
61 3129
62 4497
63 2144
64 23
65 61
66 142
67 148
68 601
69 850
70 607
71 430
72 601
73 1741

List of values

[2, 5, 12, 14, 23, 42, 59, 44, 23, 61, 142, 117, 109, 183, 261, 152, 23, 61, 142, 148, 601, 850, 607, 375, 109, 265, 1093, 939, 473, 765, 1097, 560, 23, 61, 142, 148, 601, 850, 607, 430, 601, 1741, 3946, 2545, 2497, 3463, 2509, 1323, 109, 265, 1093, 1117, 2497, 4525, 5707, 3153, 473, 1105, 4489, 3813, 1969, 3129, 4497, 2144, 23, 61, 142, 148, 601, 850, 607, 430, 601, 1741]