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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.

A268113 Number of legal positions in Go played on an n X n+1 grid (each group must have at least one liberty).

Table of values

n a(n)
1 5
2 489
3 321689
4 1840058693
5 93332304864173
6 41945191530093646965
7 166931297609667912727898521
8 5882748866432370655674372752123193
9 1835738613899845421140262364853644706891109
10 5072588588647327658457862518216696854885169490987149

List of values

[5, 489, 321689, 1840058693, 93332304864173, 41945191530093646965, 166931297609667912727898521, 5882748866432370655674372752123193, 1835738613899845421140262364853644706891109, 5072588588647327658457862518216696854885169490987149]

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

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