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.

A131618 Numbers k such that the decimal expansion of 3^k contains no 4.

Table of values

n a(n)
1 0
2 1
3 2
4 3
5 4
6 6
7 7
8 8
9 9
10 22
11 33
12 34
13 38
14 46
15 49
16 75
17 106

List of values

[0, 1, 2, 3, 4, 6, 7, 8, 9, 22, 33, 34, 38, 46, 49, 75, 106]