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.

A269818 Numbers coprime to the number of their even divisors.

Table of values

n a(n)
1 1
2 2
3 8
4 32
5 50
6 98
7 128
8 162
9 200
10 242
11 338
12 392
13 512
14 578
15 722
16 968
17 1058
18 1352
19 1458
20 1568
21 1682
22 1922
23 2048
24 2312
25 2450
26 2592
27 2738
28 2888
29 3200
30 3362
31 3698
32 3872
33 4232
34 4418
35 4802
36 5408
37 5618
38 6050
39 6728
40 6962
41 7442
42 7688
43 8192
44 8450
45 8978
46 9248
47 9800
48 10082
49 10368
50 10658
51 10952
52 11552
53 11858
54 12482
55 12800

List of values

[1, 2, 8, 32, 50, 98, 128, 162, 200, 242, 338, 392, 512, 578, 722, 968, 1058, 1352, 1458, 1568, 1682, 1922, 2048, 2312, 2450, 2592, 2738, 2888, 3200, 3362, 3698, 3872, 4232, 4418, 4802, 5408, 5618, 6050, 6728, 6962, 7442, 7688, 8192, 8450, 8978, 9248, 9800, 10082, 10368, 10658, 10952, 11552, 11858, 12482, 12800]

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

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