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.

A090129 Smallest exponent such that -1 + 3^a(n) is divisible by 2^n.

Table of values

n a(n)
1 1
2 2
3 2
4 4
5 8
6 16
7 32
8 64
9 128
10 256
11 512
12 1024
13 2048
14 4096
15 8192
16 16384
17 32768
18 65536
19 131072
20 262144
21 524288
22 1048576
23 2097152
24 4194304
25 8388608
26 16777216
27 33554432
28 67108864
29 134217728
30 268435456
31 536870912
32 1073741824
33 2147483648
34 4294967296
35 8589934592
36 17179869184

List of values

[1, 2, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33554432, 67108864, 134217728, 268435456, 536870912, 1073741824, 2147483648, 4294967296, 8589934592, 17179869184]

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

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