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.

A356880 Squares that can be expressed as the sum of two powers of two (2^x + 2^y).

Table of values

n a(n)
1 4
2 9
3 16
4 36
5 64
6 144
7 256
8 576
9 1024
10 2304
11 4096
12 9216
13 16384
14 36864
15 65536
16 147456
17 262144
18 589824
19 1048576
20 2359296
21 4194304
22 9437184
23 16777216
24 37748736
25 67108864
26 150994944
27 268435456
28 603979776
29 1073741824
30 2415919104
31 4294967296
32 9663676416
33 17179869184

List of values

[4, 9, 16, 36, 64, 144, 256, 576, 1024, 2304, 4096, 9216, 16384, 36864, 65536, 147456, 262144, 589824, 1048576, 2359296, 4194304, 9437184, 16777216, 37748736, 67108864, 150994944, 268435456, 603979776, 1073741824, 2415919104, 4294967296, 9663676416, 17179869184]

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

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