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.

A171929 Odd numbers whose abundancy is closer to 2 than any smaller odd number.

Table of values

n a(n)
1 1
2 3
3 9
4 15
5 45
6 105
7 315
8 1155
9 7425
10 8415
11 8925
12 31815
13 32445
14 351351
15 442365
16 13800465
17 14571585
18 16286445
19 20355825
20 20487159
21 78524145
22 132701205
23 159030135
24 815634435
25 2586415095
26 29169504045
27 40833636525
28 125208115065

List of values

[1, 3, 9, 15, 45, 105, 315, 1155, 7425, 8415, 8925, 31815, 32445, 351351, 442365, 13800465, 14571585, 16286445, 20355825, 20487159, 78524145, 132701205, 159030135, 815634435, 2586415095, 29169504045, 40833636525, 125208115065]

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

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