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.

A317306 Powers of 2 and even perfect numbers.

Table of values

n a(n)
1 1
2 2
3 4
4 6
5 8
6 16
7 28
8 32
9 64
10 128
11 256
12 496
13 512
14 1024
15 2048
16 4096
17 8128
18 8192
19 16384
20 32768
21 65536
22 131072
23 262144
24 524288
25 1048576
26 2097152
27 4194304
28 8388608
29 16777216
30 33550336
31 33554432
32 67108864
33 134217728
34 268435456
35 536870912
36 1073741824
37 2147483648
38 4294967296
39 8589869056
40 8589934592

List of values

[1, 2, 4, 6, 8, 16, 28, 32, 64, 128, 256, 496, 512, 1024, 2048, 4096, 8128, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33550336, 33554432, 67108864, 134217728, 268435456, 536870912, 1073741824, 2147483648, 4294967296, 8589869056, 8589934592]

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

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