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.

A355595 Positions of records in A355593: Integers whose number of alternating divisors sets a new record.

Table of values

n a(n)
1 1
2 2
3 4
4 6
5 12
6 24
7 36
8 72
9 144
10 180
11 360
12 504
13 630
14 1080
15 1260
16 1890
17 2520
18 3780
19 7560
20 15120
21 18900
22 22680
23 30240
24 37800
25 45360
26 75600
27 90720
28 151200
29 162540
30 226800
31 317520
32 325080
33 650160
34 763560
35 1137780
36 1243620
37 1527120
38 2275560
39 3054240
40 3738420
41 4551120
42 6826680
43 7476840
44 14953680
45 17445960
46 21818160
47 26168940
48 36363600
49 43636320
50 52337880

List of values

[1, 2, 4, 6, 12, 24, 36, 72, 144, 180, 360, 504, 630, 1080, 1260, 1890, 2520, 3780, 7560, 15120, 18900, 22680, 30240, 37800, 45360, 75600, 90720, 151200, 162540, 226800, 317520, 325080, 650160, 763560, 1137780, 1243620, 1527120, 2275560, 3054240, 3738420, 4551120, 6826680, 7476840, 14953680, 17445960, 21818160, 26168940, 36363600, 43636320, 52337880]

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

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