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.

A078098 Let u(1)=u(2)=1, u(3)=2n+1, u(k)=abs(u(k-1)-u(k-2)-u(k-3)); then for any n (u(k),u(k+1)) = (v(n),w(n)) for k large enough; sequence gives values of Max(v(n),w(n)).

Table of values

n a(n)
1 3
2 7
3 11
4 13
5 21
6 29
7 39
8 39
9 49
10 69
11 67
12 69
13 69
14 79
15 83
16 87
17 81
18 101
19 111
20 115
21 133
22 141
23 139
24 151
25 187
26 157
27 191
28 187
29 199
30 213
31 223
32 211
33 221
34 241
35 255
36 275
37 309
38 293
39 287
40 279
41 295
42 293
43 303
44 283
45 325
46 345
47 357
48 367
49 403
50 393
51 419
52 419
53 477
54 457
55 519
56 487

List of values

[3, 7, 11, 13, 21, 29, 39, 39, 49, 69, 67, 69, 69, 79, 83, 87, 81, 101, 111, 115, 133, 141, 139, 151, 187, 157, 191, 187, 199, 213, 223, 211, 221, 241, 255, 275, 309, 293, 287, 279, 295, 293, 303, 283, 325, 345, 357, 367, 403, 393, 419, 419, 477, 457, 519, 487]

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

Content is available under The OEIS End-User License Agreement.