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.

A123208 Start with 1, then alternately add 2 or double.

Table of values

n a(n)
0 1
1 3
2 6
3 8
4 16
5 18
6 36
7 38
8 76
9 78
10 156
11 158
12 316
13 318
14 636
15 638
16 1276
17 1278
18 2556
19 2558
20 5116
21 5118
22 10236
23 10238
24 20476
25 20478
26 40956
27 40958
28 81916
29 81918
30 163836
31 163838
32 327676
33 327678
34 655356
35 655358
36 1310716
37 1310718
38 2621436
39 2621438
40 5242876
41 5242878

List of values

[1, 3, 6, 8, 16, 18, 36, 38, 76, 78, 156, 158, 316, 318, 636, 638, 1276, 1278, 2556, 2558, 5116, 5118, 10236, 10238, 20476, 20478, 40956, 40958, 81916, 81918, 163836, 163838, 327676, 327678, 655356, 655358, 1310716, 1310718, 2621436, 2621438, 5242876, 5242878]

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

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