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.

A309759 Numbers that are sums of consecutive powers of 4.

Table of values

n a(n)
1 1
2 4
3 5
4 16
5 20
6 21
7 64
8 80
9 84
10 85
11 256
12 320
13 336
14 340
15 341
16 1024
17 1280
18 1344
19 1360
20 1364
21 1365
22 4096
23 5120
24 5376
25 5440
26 5456
27 5460
28 5461
29 16384
30 20480
31 21504
32 21760
33 21824
34 21840
35 21844
36 21845
37 65536
38 81920
39 86016
40 87040
41 87296
42 87360
43 87376
44 87380

List of values

[1, 4, 5, 16, 20, 21, 64, 80, 84, 85, 256, 320, 336, 340, 341, 1024, 1280, 1344, 1360, 1364, 1365, 4096, 5120, 5376, 5440, 5456, 5460, 5461, 16384, 20480, 21504, 21760, 21824, 21840, 21844, 21845, 65536, 81920, 86016, 87040, 87296, 87360, 87376, 87380]

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

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