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.

A050733 Numbers of form 3^k (values of k see A050724) containing no pair of consecutive equal digits (probably finite).

Table of values

n a(n)
0 1
1 3
2 9
3 27
4 81
5 243
6 729
7 2187
8 6561
9 19683
10 59049
11 1594323
12 4782969
13 14348907
14 43046721
15 129140163
16 387420489
17 10460353203
18 31381059609
19 282429536481
20 2541865828329
21 109418989131512359209
22 30903154382632612361920641803529

List of values

[1, 3, 9, 27, 81, 243, 729, 2187, 6561, 19683, 59049, 1594323, 4782969, 14348907, 43046721, 129140163, 387420489, 10460353203, 31381059609, 282429536481, 2541865828329, 109418989131512359209, 30903154382632612361920641803529]

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

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