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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.

A271857 Number of ways to dissect a hexagon with side length n exactly into six identical parts in a triangular lattice.

Table of values

n a(n)
1 1
2 2
3 12
4 173
5 5429
6 392544
7 66961869
8 27094069322
9 26124568587557
10 60352331499840380
11 335377713005955826349
12 4494480789037552980419332
13 145516206571394421594063628243
14 11398373584242623552596178870957640
15 2162546126021822830176241418936795142991

List of values

[1, 2, 12, 173, 5429, 392544, 66961869, 27094069322, 26124568587557, 60352331499840380, 335377713005955826349, 4494480789037552980419332, 145516206571394421594063628243, 11398373584242623552596178870957640, 2162546126021822830176241418936795142991]

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

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