“218 (number)”的意思、由来-开放百科全书

词条

218 (number)

释义

References

218 (two hundred [and] eighteen) is the natural number following 217 and preceding 219.

The code for international direct dial phone calls to Libya.
Mertens function(218) = 3, a record high.^[1]
218 is nontotient and also noncototient.^[2]
218 is the number of inequivalent ways to color the 12 edges of a cube using at most 2 colors, where two colorings are equivalent if they differ only by a rotation of the cube.
§ 218 of the German StGB legal code is the section that relates to abortion.
As of 2008, 218 votes are required in the US House of Representatives to achieve a majority.^[3]
.218 Bee, firearm cartridge
The years 218 and 218 BC
218TV a Libyan satellite channel.

References

1. ^{{Cite OEIS|sequencenumber=A051400|name=Smallest value of x such that M(x)=n, where M() is Mertens's function}}
2. ^{{Cite OEIS|sequencenumber=A058763|name=Integers which are neither totient nor cototient}}
3. ^http://news.bbc.co.uk/2/hi/americas/7652112.stm

1 : Integers

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