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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.

A265686 Number of shapes of grid-filling curves of order 6*n+1 (on the tri-hexagonal grid) with turns by +-60 and +-120 degrees that are generated by Lindenmayer-systems with just one symbol apart from the turns.

Table of values

n a(n)
1 1
2 3
3 7
4 10
5 63
6 157
7 456
8 1830
9 0
10 8538
11 23114
12 61804
13 165123
14 0
15 2339000

List of values

[1, 3, 7, 10, 63, 157, 456, 1830, 0, 8538, 23114, 61804, 165123, 0, 2339000]

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

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