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.

A272711 Square numbers whose binary reversal is also square.

Table of values

n a(n)
1 1
2 4
3 9
4 16
5 36
6 64
7 144
8 256
9 576
10 1024
11 2304
12 4096
13 9216
14 16384
15 36864
16 65536
17 147456
18 262144
19 589824
20 1048576
21 2359296
22 4194304
23 9437184
24 16777216
25 20457529
26 37748736
27 67108864
28 81830116
29 143784081
30 150994944
31 268435456
32 327320464
33 331130809
34 575136324
35 603979776

List of values

[1, 4, 9, 16, 36, 64, 144, 256, 576, 1024, 2304, 4096, 9216, 16384, 36864, 65536, 147456, 262144, 589824, 1048576, 2359296, 4194304, 9437184, 16777216, 20457529, 37748736, 67108864, 81830116, 143784081, 150994944, 268435456, 327320464, 331130809, 575136324, 603979776]

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

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