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.

A229687 Odd squares whose binary reversal is also a square.

Table of values

n a(n)
1 1
2 9
3 20457529
4 143784081
5 331130809
6 4365905625
7 5216450625
8 20074072489
9 1193532215121
10 10036851273801
11 36014509461681
12 38767247532225
13 41413201925481
14 155991531977649
15 320642706437001
16 2543173099393689
17 2696589987547401
18 4665141483989281
19 87463589042698969

List of values

[1, 9, 20457529, 143784081, 331130809, 4365905625, 5216450625, 20074072489, 1193532215121, 10036851273801, 36014509461681, 38767247532225, 41413201925481, 155991531977649, 320642706437001, 2543173099393689, 2696589987547401, 4665141483989281, 87463589042698969]

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

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