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.

A386221 Numbers which can be expressed as the product of a number and its binary reversal in at least three different ways.

Table of values

n a(n)
1 2371610879733375
2 8379443074856875
3 103889625367330285
4 162508095102648823
5 2143169709271976875
6 2481725627762299375
7 4055619414785589625
8 8167773178498814075
9 9027536760163222895
10 133527604616779133915
11 133893081609954481115
12 137216105281788994475
13 457495296809227508125

List of values

[2371610879733375, 8379443074856875, 103889625367330285, 162508095102648823, 2143169709271976875, 2481725627762299375, 4055619414785589625, 8167773178498814075, 9027536760163222895, 133527604616779133915, 133893081609954481115, 137216105281788994475, 457495296809227508125]

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

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