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.

A286456 Compound filter: a(n) = P(A056239(n), A243503(n)), with a(1) = 0, where P(n,k) is sequence A000027 used as a pairing function.

Table of values

n a(n)
1 0
2 1
3 5
4 5
5 13
6 18
7 25
8 13
9 19
10 40
11 41
12 40
13 61
14 71
15 41
16 25
17 85
18 41
19 113
20 83
21 72
22 111
23 145
24 71
25 42
26 160
27 42
28 142
29 181
30 84
31 221
32 41
33 112
34 218
35 73
36 72
37 265
38 285
39 161
40 142
41 313
42 143
43 365
44 217
45 85
46 361
47 421
48 111
49 74
50 85
51 219
52 308
53 481
54 73
55 113
56 238
57 286
58 446
59 545
60 143
61 613
62 540
63 144
64 61
65 162
66 218
67 685
68 415
69 362
70 144
71 761
72 112
73 841
74 643
75 86
76 538
77 114
78 309
79 925
80 217

List of values

[0, 1, 5, 5, 13, 18, 25, 13, 19, 40, 41, 40, 61, 71, 41, 25, 85, 41, 113, 83, 72, 111, 145, 71, 42, 160, 42, 142, 181, 84, 221, 41, 112, 218, 73, 72, 265, 285, 161, 142, 313, 143, 365, 217, 85, 361, 421, 111, 74, 85, 219, 308, 481, 73, 113, 238, 286, 446, 545, 143, 613, 540, 144, 61, 162, 218, 685, 415, 362, 144, 761, 112, 841, 643, 86, 538, 114, 309, 925, 217]