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.

A064194 a(2n) = 3*a(n), a(2n+1) = 2*a(n+1)+a(n), with a(1) = 1.

Table of values

n a(n)
1 1
2 3
3 7
4 9
5 17
6 21
7 25
8 27
9 43
10 51
11 59
12 63
13 71
14 75
15 79
16 81
17 113
18 129
19 145
20 153
21 169
22 177
23 185
24 189
25 205
26 213
27 221
28 225
29 233
30 237
31 241
32 243
33 307
34 339
35 371
36 387
37 419
38 435
39 451
40 459
41 491
42 507
43 523
44 531
45 547
46 555
47 563
48 567
49 599
50 615
51 631
52 639
53 655
54 663
55 671
56 675

List of values

[1, 3, 7, 9, 17, 21, 25, 27, 43, 51, 59, 63, 71, 75, 79, 81, 113, 129, 145, 153, 169, 177, 185, 189, 205, 213, 221, 225, 233, 237, 241, 243, 307, 339, 371, 387, 419, 435, 451, 459, 491, 507, 523, 531, 547, 555, 563, 567, 599, 615, 631, 639, 655, 663, 671, 675]

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

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