词条 | Icosahedral number |
释义 |
An icosahedral number is a figurate number that represents an icosahedron. The nth icosahedral number is given by the formula The first such numbers are 1, 12, 48, 124, 255, 456, 742, 1128, 1629, 2260, 3036, 3972, 5083, … {{OEIS|id=A006564}}. References{{Citation | last = Kim | first = Hyun Kwang | title = On Regular Polytope Numbers | url = http://com2mac.postech.ac.kr/papers/2001/01-22.pdf | archiveurl = https://web.archive.org/web/20100307080303/http://com2mac.postech.ac.kr/papers/2001/01-22.pdf | archivedate = 2010-03-07}}{{Classes of natural numbers}}{{Num-stub}} 1 : Figurate numbers |
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