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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.

A141742 Starting from the 1 in the first line of triangle A141728 choose one of the three digits below it. Repeat down to the other rows. Sequence gives the numbers in base 10 expressed by the collected digits that cannot be reached following any possible path.

Table of values

n a(n)
0 3
1 6
2 7
3 12
4 13
5 14
6 15
7 24
8 25
9 26
10 27
11 28
12 29
13 30

List of values

[3, 6, 7, 12, 13, 14, 15, 24, 25, 26, 27, 28, 29, 30]

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

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